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    "name": "Kołczan Książek",
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    "url": "https://www.kolczanksiazek.pl"
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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": "Klub Radości i Szczęścia",
  "subtitle": null,
  "slug": "klub-radosci-i-szczescia",
  "url": "https://www.kolczanksiazek.pl/amy-tan/klub-radosci-i-szczescia",
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  "authors": [
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      "name": "Amy Tan",
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    {
      "title": "Klub Radości i Szczęścia",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/amy-tan/klub-radosci-i-szczescia/8372559422",
      "publisher": "Prószyński i S-ka",
      "publisher_series": [],
      "translators": [],
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      "narrators": [],
      "illustrators": [],
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      "isbn": "8-372-55942-2",
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    {
      "title": "Klub Radości i Szczęścia",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/amy-tan/klub-radosci-i-szczescia/9788371321740",
      "publisher": "Wydawn. \"Książnica\"",
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      "translators": [],
      "medium": "paper",
      "duration_seconds": null,
      "narrators": [],
      "illustrators": [],
      "cover_artists": [],
      "isbn": "978-83-7132-174-0",
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      "language": "pl_PL",
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