{"created": {"type": "/type/datetime", "value": "2009-12-10T18:36:58.265299"}, "subject_places": ["United States"], "subjects": ["Bibliography", "Cities and towns", "Urban economics"], "latest_revision": 2, "key": "/works/OL6132862W", "title": "City size", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1567471A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2010-12-05T02:46:56.771415"}, "revision": 2}