{
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    "nstc": null,
    "title": "Valleien",
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    "collection_title": null,
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    "annotation": null,
    "description": "Wat is een vallei? Lees dit boek en leer alles over valleien. In valleien leren we waarom een vallei een vallei genoemd wordt, waar valleien te vinden zijn en welke eigenschappen een vallei uniek maakt.\n\nAan de hand van fantastische fotos en een eenvoudige maar instructieve tekst leren de kinderen van alles over landschappen. Elk onderwerp wordt in gemakkelijk Nederlands en met tot de verbeelding sprekende fotos tot uiting gebracht.",
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    "language_code": "dut",
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    "page_count": 24,
    "duration_seconds": null,
    "publication_date_first": "2013-04-19",
    "publication_date_latest": "2013-04-19",
    "cover_url": null,
    "editions": [
        {
            "isbn": "9789055665952",
            "product_form": "BB"
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    "created_at": "2025-09-19T13:44:13+00:00",
    "updated_at": "2025-11-07T00:34:45+00:00",
    "publisher": {
        "id": 7012,
        "slug": "uitgeverij-ars-scribendi",
        "name": "Uitgeverij Ars Scribendi",
        "created_at": "2025-09-19T13:38:28+00:00",
        "updated_at": "2025-09-19T15:13:44+00:00"
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    "contributors": [
        {
            "id": 255648,
            "slug": "cassie-mayer-2",
            "key_names": "Mayer",
            "names_before_key": "Cassie",
            "prefix_to_key": null,
            "contributor_role": "A01",
            "readable_contributor_role": "Author"
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    ],
    "genres": [],
    "subjects": [
        {
            "scheme_identifier": "32",
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            "subject_code": "223",
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}