{
  "type": "edition",
  "site": {
    "name": "Kołczan Książek",
    "language": "pl-PL",
    "url": "https://www.kolczanksiazek.pl"
  },
  "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 Iron Heel",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/jack-london/en/the-iron-heel/9780143039716",
  "publisher": "Penguin Classics",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-01-4303-971-6",
  "pages": 288,
  "published": "2006-07-25",
  "language": "en_US",
  "cover": "https://quivercdn.com/covers/penguin-classics/jack-london/the-iron-heel_978-01-4303-971-6.jpg?v=2026-06-20%2022%3A04%3A11",
  "json": "https://www.kolczanksiazek.pl/jack-london/en/the-iron-heel/9780143039716.json",
  "markdown": "https://www.kolczanksiazek.pl/jack-london/en/the-iron-heel/9780143039716.md",
  "binding": "Softcover",
  "description": "Part science fiction, part dystopian fantasy, part radical socialist tract, Jack London's The Iron Heel offers a grim depiction of warfare between the classes in America and around the globe. Originally...",
  "book": {
    "title": "The Iron Heel",
    "slug": "the-iron-heel",
    "url": "https://www.kolczanksiazek.pl/jack-london/en/the-iron-heel"
  },
  "authors": [
    {
      "name": "Jack London",
      "slug": "jack-london",
      "url": "https://www.kolczanksiazek.pl/jack-london"
    },
    {
      "name": "Jonathan Auerbach",
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      "url": "https://www.kolczanksiazek.pl/jonathan-auerbach"
    },
    {
      "name": "Jordan Schugar",
      "slug": "jordan-schugar",
      "url": "https://www.kolczanksiazek.pl/jordan-schugar"
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}