{"subjects": ["Environmental geology", "Geology, united states"], "key": "/works/OL6631603W", "title": "The Impact of Geology on the United States", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1784115A"}}], "type": {"key": "/type/work"}, "covers": [1173305], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-10T19:28:19.181941"}, "last_modified": {"type": "/type/datetime", "value": "2021-09-15T21:25:08.924052"}}