{
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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": "The Secret Agent",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/joseph-conrad/en/the-secret-agent/9780451474292",
  "publisher": "Signet",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-04-5147-429-2",
  "pages": 288,
  "published": "2015-08-04",
  "language": "en_US",
  "cover": "https://quivercdn.com/covers/signet/joseph-conrad/the-secret-agent_978-04-5147-429-2.jpg?v=2026-06-12%2013%3A25%3A23",
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  "markdown": "https://www.kolczanksiazek.pl/joseph-conrad/en/the-secret-agent/9780451474292.md",
  "binding": "Softcover",
  "description": "This chillingly prophetic examination of terrorism by the author of Heart of Darkness is the literary precursor to the espionage thrillers of Graham Greene and John Le Carré. Inspired by...",
  "book": {
    "title": "The Secret Agent",
    "slug": "the-secret-agent",
    "url": "https://www.kolczanksiazek.pl/joseph-conrad/en/the-secret-agent"
  },
  "authors": [
    {
      "name": "Joseph Conrad",
      "slug": "joseph-conrad",
      "url": "https://www.kolczanksiazek.pl/joseph-conrad"
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}