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    "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": "Agrippa",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/robert-harris/agrippa/9781529154429",
  "publisher": "cornerstone",
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
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  "cover_artists": [],
  "isbn": "978-15-2915-442-9",
  "pages": 480,
  "published": "2026-01-01",
  "language": "pl_PL",
  "cover": "https://quivercdn.com/covers/cornerstone/robert-harris/agrippa_978-15-2915-442-9-4d9d9488.webp?v=2026-09-28%2022%3A25%3A12",
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  "binding": "Softcover",
  "description": "**PRE-ORDER NOW to secure the special Collector's edition - available only while stock lasts and exclusive to the first print run**The Sunday Times number one bestselling author returns to Ancient Rome in his latest thriller – coming August 2026. 'A master storyteller' OBSERVERJulius Caesar is...",
  "book": {
    "title": "Agrippa",
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    "url": "https://www.kolczanksiazek.pl/robert-harris/agrippa"
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  "authors": [
    {
      "name": "Robert Harris",
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