BIB-017

{
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    "subfields": [
      {
        "a": "DL1377-1984"
      },
      {
        "b": "Bibliothèque nationale de France"
      }
    ]
  }
}

{
  "017": {
    "ind1": " ",
    "ind2": " ",
    "subfields": [
      {
        "a": "DL1377-1984"
      },
      {
        "b": "Bibliothèque nationale de France"
      }
    ]
  }
}

{
  "mainEntity": {
    "identifiedBy": [
      {
        "@type": "CopyrightNumber",
        "value": "DL1377-1984",
        "source": {
          "@type": "Source",
          "label": "Bibliothèque nationale de France"
        }
      }
    ]
  }
}