{
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  "site": {
    "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": "Steppenwolf",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/hermann-hesse/en/steppenwolf/9798217006946",
  "publisher": "Vintage",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "979-82-1700-694-6",
  "pages": 256,
  "published": "2025-09-23",
  "language": "en_US",
  "cover": "https://quivercdn.com/covers/vintage/hermann-hesse/steppenwolf_979-82-1700-694-6.jpg?v=2026-05-26%2022%3A56%3A22",
  "json": "https://www.kolczanksiazek.pl/hermann-hesse/en/steppenwolf/9798217006946.json",
  "markdown": "https://www.kolczanksiazek.pl/hermann-hesse/en/steppenwolf/9798217006946.md",
  "binding": "Softcover",
  "description": "The counterculture classic, a surrealist masterpiece about a man who believes his life is irredeemable until he ventures into the world of pleasure, by the Nobel Prize-winning author of Siddhartha. To...",
  "book": {
    "title": "Steppenwolf",
    "slug": "steppenwolf",
    "url": "https://www.kolczanksiazek.pl/hermann-hesse/en/steppenwolf"
  },
  "authors": [
    {
      "name": "Hermann Hesse",
      "slug": "hermann-hesse",
      "url": "https://www.kolczanksiazek.pl/hermann-hesse"
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  ]
}