{"created": {"type": "/type/datetime", "value": "2009-12-08T04:33:25.112705"}, "subjects": ["Mathematics", "Textbooks"], "latest_revision": 7, "key": "/works/OL531505W", "title": "Prealgebra", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL37435A"}}, {"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2687758A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2020-11-13T17:02:47.229571"}, "covers": [4617710], "revision": 7}