{"first_publish_date": "1965", "last_modified": {"type": "/type/datetime", "value": "2012-04-06T17:13:55.297512"}, "title": "Stratigraphy, structure, and mineral deposits in the Oro Grande series near Victorville, California", "created": {"type": "/type/datetime", "value": "2009-12-09T21:53:30.316305"}, "covers": [7096626], "subject_places": ["California", "San Bernardino County"], "lc_classifications": ["TN24.C2 A33 no. 84", "QE90.S114 A33 no. 84"], "latest_revision": 3, "key": "/works/OL1568683W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL168443A"}}], "dewey_number": ["553/.09794 s", "557.94/95"], "type": {"key": "/type/work"}, "subjects": ["Mines and mineral resources", "Geology"], "revision": 3}