{"lc_classifications": ["GB1025.S8 R33"], "key": "/works/OL3243671W", "created": {"type": "/type/datetime", "value": "2009-12-10T03:04:07.997442"}, "title": "Large springs in the Black Hills, South Dakota and Wyoming", "id": 38420265, "subject_places": ["Black Hills (S.D. and Wyo.)"], "first_publish_date": "1973", "latest_revision": 2, "last_modified": {"type": "/type/datetime", "value": "2010-02-13T01:13:55.380838"}, "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL528927A"}}], "dewey_number": ["551.4/98"], "type": {"key": "/type/work"}, "subjects": ["Springs"], "revision": 2}