{
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    "name": "Kołczan Książek",
    "language": "pl-PL",
    "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": "Think and Grow Rich",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/napoleon-hill/en/think-and-grow-rich/9781585424337",
  "publisher": "tarcher",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-15-8542-433-7",
  "pages": 320,
  "published": "2005-08-18",
  "language": "en_US",
  "cover": "https://quivercdn.com/covers/tarcher/napoleon-hill/think-and-grow-rich_978-15-8542-433-7.jpg?v=2026-06-19%2018%3A45%3A08",
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  "markdown": "https://www.kolczanksiazek.pl/napoleon-hill/en/think-and-grow-rich/9781585424337.md",
  "binding": "Softcover",
  "description": "The bestselling success book of all time—now revised and updated for the 21st century. Think and Grow Rich has been called the “Granddaddy of All Motivational Literature.” It was the...",
  "book": {
    "title": "Think and Grow Rich",
    "slug": "think-and-grow-rich",
    "url": "https://www.kolczanksiazek.pl/napoleon-hill/en/think-and-grow-rich"
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  "authors": [
    {
      "name": "Napoleon Hill",
      "slug": "napoleon-hill",
      "url": "https://www.kolczanksiazek.pl/napoleon-hill"
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