{"first_publish_date": "2006", "title": "The circulatory system", "covers": [1366804], "lc_classifications": ["QP103 .O45 2006"], "key": "/works/OL1874178W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL224401A"}}], "dewey_number": ["612.1"], "type": {"key": "/type/work"}, "subjects": ["Juvenile literature", "Cardiovascular system", "Human body", "Circulatory system", "Heart", "Heart, diseases", "Heart, diseases, juvenile literature"], "description": {"type": "/type/text", "value": "\"Learn about the job of the circulatory system, problems that may arise, and how to keep the system healthy\"--Provided by publisher."}, "latest_revision": 8, "revision": 8, "created": {"type": "/type/datetime", "value": "2009-12-09T22:29:57.683482"}, "last_modified": {"type": "/type/datetime", "value": "2022-07-18T21:46:36.737461"}}