{
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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": "Grammar in Use Intermediate Student's Book without Answers",
  "subtitle": null,
  "url": "https://www.kolczanksiazek.pl/raymond-murphy/grammar-in-use-intermediate-students-book-without-answers/9781108449397",
  "publisher": "CAMBRIDGE UNIVERSITY PRESS",
  "publisher_series": [],
  "translators": [],
  "medium": "paper",
  "duration_seconds": null,
  "narrators": [],
  "illustrators": [],
  "cover_artists": [],
  "isbn": "978-11-0844-939-7",
  "pages": null,
  "published": null,
  "language": "pl_PL",
  "cover": "https://quivercdn.com/covers/cambridge-university-press/raymond-murphy/grammar-in-use-intermediate-students-book-without-answers_978-11-0844-939-7-ba80b29d.webp?v=2026-08-28%2003%3A49%3A15",
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  "markdown": "https://www.kolczanksiazek.pl/raymond-murphy/grammar-in-use-intermediate-students-book-without-answers/9781108449397.md",
  "binding": "Softcover",
  "description": "Grammar in Use Intermediate, authored by Raymond Murphy, is the first choice for intermediate (B1-B2) learners of American English and covers all the grammar required at this level. It is a self-study book with simple explanations and lots of practice exercises, and has helped millions of people...",
  "book": {
    "title": "Grammar in Use Intermediate Student's Book without Answers",
    "slug": "grammar-in-use-intermediate-students-book-without-answers",
    "url": "https://www.kolczanksiazek.pl/raymond-murphy/grammar-in-use-intermediate-students-book-without-answers"
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  "authors": [
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      "name": "Raymond Murphy",
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