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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": "Economics for the IB Diploma. IB Study Guide. 2nd ed. Ziogas, C. PB",
  "subtitle": null,
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    {
      "name": "Constantine Ziogas",
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  "original_title": null,
  "original_language": null,
  "first_published": "2012-01-01",
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  "description": "Completely updated for the 2011 syllabus at SL and HL and written by an experienced IB Economics teacher, this comprehensive study tool supports top achievement. With full coverage of the new quantitative element at HL and an expanded glossary, past exam questions build confidence and the focused...",
  "editions": [
    {
      "title": "Economics for the IB Diploma. IB Study Guide. 2nd ed. Ziogas, C. PB",
      "subtitle": null,
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