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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": "Ekonomia międzynarodowa TOM 2",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/paul-krugman/ekonomia-miedzynarodowa-tom-2/9788301200800",
  "publisher": "Wydawnictwo Naukowe PWN",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-83-0120-080-0",
  "pages": 524,
  "published": "2018-09-10",
  "language": "pl_PL",
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  "markdown": "https://www.kolczanksiazek.pl/paul-krugman/ekonomia-miedzynarodowa-tom-2/9788301200800.md",
  "binding": "Softcover",
  "description": "Nowe",
  "book": {
    "title": "Ekonomia międzynarodowa TOM 2",
    "slug": "ekonomia-miedzynarodowa-tom-2",
    "url": "https://www.kolczanksiazek.pl/paul-krugman/ekonomia-miedzynarodowa-tom-2"
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  "authors": [
    {
      "name": "Paul Krugman",
      "slug": "paul-krugman",
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