{
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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 Pilgrim",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/john-le-carre/en/the-secret-pilgrim/9780345504425",
  "publisher": "Ballantine Books",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-03-4550-442-5",
  "pages": 400,
  "published": "2008-04-29",
  "language": "en_US",
  "cover": "https://quivercdn.com/covers/ballantine-books/john-le-carre/the-secret-pilgrim_978-03-4550-442-5.jpg?v=2026-06-09%2022%3A00%3A43",
  "json": "https://www.kolczanksiazek.pl/john-le-carre/en/the-secret-pilgrim/9780345504425.json",
  "markdown": "https://www.kolczanksiazek.pl/john-le-carre/en/the-secret-pilgrim/9780345504425.md",
  "binding": "Softcover",
  "description": "The acclaimed novel featuring George Smiley, from the #1 New York Times bestselling author of A Legacy of Spies and The Night Manager, now a hit streaming series The rules of the game, and of the world,...",
  "book": {
    "title": "The Secret Pilgrim",
    "slug": "the-secret-pilgrim",
    "url": "https://www.kolczanksiazek.pl/john-le-carre/en/the-secret-pilgrim"
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  "authors": [
    {
      "name": "John le Carré",
      "slug": "john-le-carre",
      "url": "https://www.kolczanksiazek.pl/john-le-carre"
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}