{"title": "Energy (Physical Science in Depth)", "covers": [5150804], "key": "/works/OL765217W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL62939A"}}], "type": {"key": "/type/work"}, "subjects": ["Force and energy", "Juvenile literature", "Matter", "Power resources"], "latest_revision": 5, "revision": 5, "created": {"type": "/type/datetime", "value": "2009-12-09T03:28:22.342613"}, "last_modified": {"type": "/type/datetime", "value": "2020-12-17T05:53:28.302254"}}