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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": "Heart of Darkness",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/joseph-conrad/en/heart-of-darkness/9789358563108",
  "publisher": "fingerprint",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
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  "isbn": "978-93-5856-310-8",
  "pages": 180,
  "published": "2023-11-20",
  "language": "en_US",
  "cover": "https://quivercdn.com/covers/fingerprint/joseph-conrad/heart-of-darkness-deluxe-hardbound-edition_978-93-5856-310-8.jpg?v=2026-06-03%2005%3A24%3A27",
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  "markdown": "https://www.kolczanksiazek.pl/joseph-conrad/en/heart-of-darkness/9789358563108.md",
  "binding": "Hardcover",
  "description": "A haunting journey into the soul of empire and the shadowy depths of human nature. Joseph Conrad’s Heart of Darkness is a powerful and unsettling novella that takes readers deep into the Congo River...",
  "book": {
    "title": "Heart of Darkness",
    "slug": "heart-of-darkness",
    "url": "https://www.kolczanksiazek.pl/joseph-conrad/en/heart-of-darkness"
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  "authors": [
    {
      "name": "Joseph Conrad",
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}