{"created": {"type": "/type/datetime", "value": "2009-12-10T20:50:28.904835"}, "subjects": ["Mining engineers"], "latest_revision": 3, "key": "/works/OL7306414W", "title": "Careers of University of California mining engineers, 1865-1936", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2144508A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2011-12-17T06:00:17.477551"}, "covers": [6991650], "revision": 3}