BIB-243

{
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    "ind1": "1",
    "ind2": " ",
    "subfields": [
      {
        "a": "Philosophical works"
      },
      {
        "k": "Selsections"
      }
    ]
  }
}

{
  "243": {
    "ind1": "1",
    "ind2": "0",
    "subfields": [
      {
        "a": "Philosophical works"
      },
      {
        "k": "Selsections"
      }
    ]
  }
}

{
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      "hasTitle": [
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          "marc:formSubheading": [
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          ]
        }
      ]
    }
  }
}

{
  "243": {
    "ind1": "1",
    "ind2": "0",
    "subfields": [
      {
        "a": "Correspondence"
      },
      {
        "l": "English"
      },
      {
        "s": "Selections"
      }
    ]
  }
}

{
  "mainEntity": {
    "instanceOf": {
      "@type": "Text",
      "hasTitle": [
        {
          "@type": "CollectiveTitle",
          "mainTitle": "Correspondence"
        }
      ],
      "language": {
        "@type": "Language",
        "label": "English"
      },
      "version": "Selections"
    }
  }
}