Problema doble

stdClass Object
(
    [LEADER] => 01863nam a2200457 c 4500
    [001] => Array
        (
            [0] => a7125756
        )

    [003] => Array
        (
            [0] => SpMaBN
        )

    [005] => Array
        (
            [0] => 20220620130845.2
        )

    [008] => Array
        (
            [0] => 220608s2021\\\\sp\a\\\|\||||\000\1\spa\\
        )

    [015] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => MON21
                        )

                )

        )

    [017] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => GI 555-2021
                            [b] => Oficina Depósito Legal Girona
                        )

                )

        )

    [020] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => 978-84-1101-056-6
                        )

                )

        )

    [040] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => SpMaBN
                            [b] => spa
                            [c] => SpMaBN
                            [e] => rda
                        )

                )

        )

    [041] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => 1
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => spa
                            [h] => eng
                        )

                )

        )

    [044] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Array
                                (
                                    [0] => sp
                                    [1] => it
                                )

                        )

                )

        )

    [080] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => 821.111(71)-91"20"
                        )

                )

            [1] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => 741.52
                        )

                )

        )

    [100] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => 1
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Tamaki, Mariko
                            [e] => autor
                            [4] => aut
                        )

                )

        )

    [240] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => 1
                    [ind2] => 0
                    [code] => stdClass Object
                        (
                            [a] => Double trouble
                            [l] => Español
                        )

                )

        )

    [245] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => 1
                    [ind2] => 0
                    [code] => stdClass Object
                        (
                            [a] => Problema doble
                            [c] => guion, Mariko Tamaki ; dibujo, Gurihiru ; Thor y Loki son una creación de Stan Lee, Larry Lieber y Jack Kirby ; traducción, Uriel López
                        )

                )

        )

    [264] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => 1
                    [code] => stdClass Object
                        (
                            [a] => Torroella de Montgrí (Girona)
                            [b] => Panini España, S.A.,
                            [c] => [2021]
                        )

                )

            [1] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => 3
                    [code] => stdClass Object
                        (
                            [a] => Impreso en Italia
                            [b] => [fabricante no identificado],
                            [c] => [2021]
                        )

                )

            [2] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => 4
                    [code] => stdClass Object
                        (
                            [c] => ©2021
                        )

                )

        )

    [300] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => 90 páginas, 6 páginas sin numerar
                            [b] => principalmente ilustraciones (color)
                            [c] => 29 cm
                        )

                )

        )

    [336] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Array
                                (
                                    [0] => Imagen fija
                                    [1] => Texto
                                )

                            [2] => rdacontent
                        )

                )

        )

    [337] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => sin mediación
                            [2] => rdamedia
                        )

                )

        )

    [338] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => volumen
                            [2] => rdacarrier
                        )

                )

        )

    [380] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [i] => Major genre
                            [a] => Literature
                            [l] => eng
                        )

                )

        )

    [381] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [i] => Major genre
                            [a] => Other
                            [l] => eng
                        )

                )

        )

    [490] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => 0
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Marvel Action. Thor & Loki
                        )

                )

        )

    [500] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Precede al título: Marvel
                        )

                )

            [1] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => En la página 4 de la cubierta: Panini Comics
                        )

                )

            [2] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Publicado originalmente en Marvel Action: Thor & Loki, Double trouble, nos 1-4 (mayo-septiembre de 2021)
                        )

                )

        )

    [655] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => 7
                    [code] => stdClass Object
                        (
                            [a] => Mangas
                            [2] => tgfbne
                        )

                )

            [1] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => 7
                    [code] => stdClass Object
                        (
                            [a] => Cómics de superhéroes
                            [2] => tgfbne
                        )

                )

        )

    [700] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => 0
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Gurihiru
                            [e] => dibujante
                            [4] => art
                        )

                )

            [1] => stdClass Object
                (
                    [ind1] => 1
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Lee, Stan
                            [d] => (1922-2018)
                            [e] => idea original
                            [4] => ccp
                            [1] => http://viaf.org/viaf/71393805/
                        )

                )

            [2] => stdClass Object
                (
                    [ind1] => 1
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Lieber, Larry
                            [e] => idea original
                            [4] => ccp
                        )

                )

            [3] => stdClass Object
                (
                    [ind1] => 1
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Kirby, Jack
                            [d] => (1917-1994)
                            [e] => idea original
                            [4] => ccp
                            [1] => http://viaf.org/viaf/100267886/
                        )

                )

            [4] => stdClass Object
                (
                    [ind1] => 1
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => López, Uriel
                            [e] => traductor
                            [4] => trl
                        )

                )

        )

    [995] => Array
        (
            [0] => stdClass Object
                (
                    [ind1] => \
                    [ind2] => \
                    [code] => stdClass Object
                        (
                            [a] => Biblioteca Nacional de España
                        )

                )

        )

)