{"title": "Chicago Ward Maps Eighteen Thirty Seven to Nineteen Seventy", "created": {"type": "/type/datetime", "value": "2009-12-10T05:25:43.280868"}, "last_modified": {"type": "/type/datetime", "value": "2009-12-10T05:25:43.280868"}, "latest_revision": 1, "key": "/works/OL4131932W", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL776298A"}}], "type": {"key": "/type/work"}, "revision": 1}