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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": "Trzask prask!",
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  "authors": [
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      "name": "Hanna Holwerda",
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  "description": "Wszystkie doświadczenia opatrzone są szczegółowymi objaśnieniami, praktycznymi wskazówkami i rzetelnymi informacjami z danej dziedziny nauki, które ułatwiają zrobienie eksperymentu i czynią z niego świetną zabawę.",
  "editions": [
    {
      "title": "Trzask prask!",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/hanna-holwerda/trzask-prask/9788375029437",
      "publisher": "Wydawnictwo Wam",
      "publisher_series": [],
      "translators": [],
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      "duration_seconds": null,
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      "isbn": "978-83-7502-943-7",
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    {
      "title": "Trzask prask!",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/hanna-holwerda/trzask-prask/9788375029420",
      "publisher": "Wydawnictwo Wam",
      "publisher_series": [],
      "translators": [],
      "medium": "paper",
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