{"first_publish_date": "1918", "last_modified": {"type": "/type/datetime", "value": "2017-10-08T09:03:12.763405"}, "title": "Hydraulic an placer mining", "created": {"type": "/type/datetime", "value": "2012-01-13T00:13:11.701099"}, "covers": [7008176, 5756730], "lc_classifications": ["TN421 W7 1918"], "latest_revision": 2, "key": "/works/OL16456782W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2413920A"}}], "type": {"key": "/type/work"}, "subjects": ["Hydraulic mining"], "revision": 2}