{"first_publish_date": "1931", "last_modified": {"type": "/type/datetime", "value": "2010-12-04T08:54:27.772778"}, "title": "Correlation of the Big Blue series in Nebraska", "created": {"type": "/type/datetime", "value": "2009-12-09T21:51:31.979415"}, "subject_places": ["Nebraska"], "lc_classifications": ["QE135 .A4 no. 6"], "latest_revision": 3, "key": "/works/OL1555816W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL165868A"}}], "subject_times": ["Permian"], "type": {"key": "/type/work"}, "subjects": ["Geology", "Geology, Stratigraphic", "Stratigraphic Geology"], "revision": 3}