{
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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": "Improve Your Listening Skills",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/ewelina-blonska/improve-your-listening-skills/9788375619706",
  "publisher": "Poltext",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-83-7561-970-6",
  "pages": 180,
  "published": "2019-01-01",
  "language": "pl_PL",
  "cover": "https://quivercdn.com/covers/poltext/ewelina-blonska/improve-your-listening-skills_978-83-7561-970-6-0f7ae638.jpg?v=2026-09-05%2012%3A26%3A29",
  "json": "https://www.kolczanksiazek.pl/ewelina-blonska/improve-your-listening-skills/9788375619706.json",
  "markdown": "https://www.kolczanksiazek.pl/ewelina-blonska/improve-your-listening-skills/9788375619706.md",
  "binding": "Softcover",
  "description": "Znakomity podręcznik do samodzielnej nauki dla osób przygotowujących się do egzaminów językowych.",
  "book": {
    "title": "Improve Your Listening Skills",
    "slug": "improve-your-listening-skills",
    "url": "https://www.kolczanksiazek.pl/ewelina-blonska/improve-your-listening-skills"
  },
  "authors": [
    {
      "name": "Ewelina Błońska",
      "slug": "ewelina-blonska",
      "url": "https://www.kolczanksiazek.pl/ewelina-blonska"
    }
  ]
}