{"type": {"key": "/type/edition"}, "publish_date": "1910", "publish_country": "fr", "languages": [{"key": "/languages/fre"}], "title": "L'instruction publique au royaume de Pologne", "authors": [{"key": "/authors/OL13826863A"}], "oclc_numbers": ["4539964"], "lc_classifications": ["LA841 .I62"], "subjects": ["Education"], "subject_places": ["Poland"], "publishers": ["Au bureau de l'Agence polonaise de presse"], "publish_places": ["Paris"], "pagination": "iv, 123 p.", "number_of_pages": 123, "source_records": ["marc:harvard_bibliographic_metadata/20220215_044.bib.mrc:290007805:1427"], "works": [{"key": "/works/OL45865453W"}], "key": "/books/OL62411884M", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2026-08-06T16:03:23.979674"}, "last_modified": {"type": "/type/datetime", "value": "2026-08-06T16:03:23.979674"}}