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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": "Walden",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/henry-david-thoreau/en/walden/9780300110081",
  "publisher": "Yale University Press",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-03-0011-008-1",
  "pages": 454,
  "published": "2006-06-30",
  "language": "en_US",
  "cover": "https://quivercdn.com/covers/yale-university-press/henry-david-thoreau/walden_978-03-0011-008-1-0edf0555.webp?v=2026-11-11%2017%3A21%3A19",
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  "markdown": "https://www.kolczanksiazek.pl/henry-david-thoreau/en/walden/9780300110081.md",
  "binding": "Softcover",
  "description": "This handsome, affordable paperback edition is based on the original 1854 edition with emendations taken from Thoreau's draft manuscripts, his own markings on page proofs, and notes in his personal copy of the book.",
  "book": {
    "title": "Walden",
    "slug": "walden",
    "url": "https://www.kolczanksiazek.pl/henry-david-thoreau/en/walden"
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  "authors": [
    {
      "name": "Henry David Thoreau",
      "slug": "henry-david-thoreau",
      "url": "https://www.kolczanksiazek.pl/henry-david-thoreau"
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