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  "formats": "Każda podstrona ma dwie wersje z tymi samymi danymi: JSON (adres strony + .json) i markdown (adres strony + .md). Do każdego `url` w tym dokumencie można dopisać .json albo .md.",
  "title": "Klucz światła",
  "subtitle": null,
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  "authors": [
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  "original_title": "Key of Light",
  "original_language": "en",
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  "description": null,
  "editions": [
    {
      "title": "Klucz światła",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/nora-roberts/klucz-swiatla/9788376484655",
      "publisher": "Prószyński i S-ka",
      "translators": [],
      "medium": "paper",
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      "narrators": [],
      "illustrators": [],
      "cover_artists": [],
      "isbn": "978-83-7648-465-5",
      "pages": 383,
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