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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": "1920. Cud Wisły. 1920. The Miracle o the Vistula",
  "subtitle": null,
  "slug": "1920-cud-wisly-1920-the-miracle-o-the-vistula",
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  "authors": [
    {
      "name": "Piotr Wilkosz",
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      "url": "https://www.kolczanksiazek.pl/piotr-wilkosz"
    },
    {
      "name": "Rafał Quirini-Popławski",
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  "language": "pl_PL",
  "original_title": null,
  "original_language": null,
  "first_published": "2020-01-01",
  "genres": [],
  "series": [],
  "cover": "https://quivercdn.com/covers/muzeum-narodowe/piotr-wilkosz/1920-cud-wisly-1920-the-miracle-o-the-vistula_978-83-7581-345-6.webp?v=2026-08-14%2003%3A34%3A17",
  "description": "W albumie można podziwiać dzieła polskich artystów projektujących plakaty wojenne, m. in. Edmunda Bartłomiejczyka, Zdzisława Gedliczki, Aleksandra Grzybowskiego, Karola Homolacsa, Zygmunta Kamińskiego, Edwarda Lessera, Kamila Mackiewicza, Bogdana Nowakowskiego, Stanisława Siestrzeńcewicza,...",
  "editions": [
    {
      "title": "1920. Cud Wisły. 1920. The Miracle o the Vistula",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/piotr-wilkosz/1920-cud-wisly-1920-the-miracle-o-the-vistula/9788375813456",
      "publisher": "Muzeum Narodowe",
      "publisher_series": [],
      "translators": [],
      "medium": "paper",
      "duration_seconds": null,
      "narrators": [],
      "illustrators": [],
      "cover_artists": [],
      "isbn": "978-83-7581-345-6",
      "pages": 72,
      "published": "2020-01-01",
      "language": "pl_PL",
      "cover": "https://quivercdn.com/covers/muzeum-narodowe/piotr-wilkosz/1920-cud-wisly-1920-the-miracle-o-the-vistula_978-83-7581-345-6.webp?v=2026-08-14%2003%3A34%3A17"
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