{"lc_classifications": ["TS280 .K52 1996"], "key": "/works/OL3372176W", "title": "History of line pipe manufacturing in North America", "subject_places": ["North America"], "first_publish_date": "1996", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL549164A"}}], "dewey_number": ["672.8/32"], "type": {"key": "/type/work"}, "subjects": ["Pipe", "Pipe mills", "Pipe industry", "History"], "covers": [13171018], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-10T03:24:08.326982"}, "last_modified": {"type": "/type/datetime", "value": "2023-01-31T11:11:44.977601"}}