{"type": {"key": "/type/work"}, "title": "Class I, II, and III motor carriers revenues, ton-miles, and passenger-miles, 1939-51", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL7196093A"}}], "key": "/works/OL38520828W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2024-07-14T11:41:56.575494"}, "last_modified": {"type": "/type/datetime", "value": "2024-07-14T11:41:56.575494"}}