{"covers": [6994148], "last_modified": {"type": "/type/datetime", "value": "2011-12-20T21:18:43.568121"}, "latest_revision": 3, "key": "/works/OL5961177W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1479275A"}}], "created": {"type": "/type/datetime", "value": "2009-12-10T18:15:38.541278"}, "title": "Notes on the historical source material in the Ayer Collection on the North American Indian presented by Edward E. Ayer to the Newberry Library, Chicago", "subject_places": ["America", "Hawaii", "Philippines"], "subjects": ["Discovery and exploration", "History", "Indians of North America", "Sources"], "type": {"key": "/type/work"}, "revision": 3}