{"publishers": ["Grolier Educational"], "identifiers": {"librarything": ["1339899"]}, "languages": [{"key": "/languages/eng"}], "number_of_pages": 56, "isbn_13": ["9780717275755"], "physical_format": "Unknown Binding", "isbn_10": ["0717275752"], "publish_date": "2002", "key": "/books/OL7836736M", "authors": [{"key": "/authors/OL218808A"}], "title": "Calcium and magnesium (Elements)", "works": [{"key": "/works/OL8374112W"}], "type": {"key": "/type/edition"}, "subjects": ["Calcium", "Chemical elements", "Juvenile literature", "Magnesium"], "local_id": ["urn:bwbsku:T2-EAL-833"], "source_records": ["promise:bwb_daily_pallets_2022-10-25"], "latest_revision": 5, "revision": 5, "created": {"type": "/type/datetime", "value": "2008-04-29T15:03:11.581851"}, "last_modified": {"type": "/type/datetime", "value": "2024-02-03T12:15:20.295529"}}