{
  "type": "book",
  "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": "Janusz Kusociński",
  "subtitle": null,
  "slug": "janusz-kusocinski",
  "url": "https://www.kolczanksiazek.pl/leslaw-m-bartelski/janusz-kusocinski",
  "json": "https://www.kolczanksiazek.pl/leslaw-m-bartelski/janusz-kusocinski.json",
  "markdown": "https://www.kolczanksiazek.pl/leslaw-m-bartelski/janusz-kusocinski.md",
  "authors": [
    {
      "name": "Lesław M. Bartelski",
      "slug": "leslaw-m-bartelski",
      "url": "https://www.kolczanksiazek.pl/leslaw-m-bartelski"
    }
  ],
  "language": "pl_PL",
  "original_title": null,
  "original_language": null,
  "first_published": "1979-03-01",
  "genres": [],
  "series": [],
  "cover": "https://quivercdn.com/covers/iskry/leslaw-m-bartelski/janusz-kusocinski_8-320-70031-0.jpg?v=2026-08-20%2020%3A18%3A36",
  "description": "Książka autorstwa Lesława M. Bartelskiego o najsłynniejszym przedwojennym polskim lekkoatlecie, Januszu Kusocińskim.",
  "editions": [
    {
      "title": "Janusz Kusociński",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/leslaw-m-bartelski/janusz-kusocinski/8320700310",
      "publisher": "Iskry",
      "publisher_series": [],
      "translators": [],
      "medium": "paper",
      "duration_seconds": null,
      "narrators": [],
      "illustrators": [],
      "cover_artists": [],
      "isbn": "8-320-70031-0",
      "pages": 135,
      "published": "1979-03-01",
      "language": "pl_PL",
      "cover": "https://quivercdn.com/covers/iskry/leslaw-m-bartelski/janusz-kusocinski_8-320-70031-0.jpg?v=2026-08-20%2020%3A18%3A36"
    }
  ],
  "other_languages": [],
  "characters": [],
  "chapters": []
}