{"type": {"key": "/type/work"}, "title": "Consolidation of railroads, 1930-1958", "subjects": ["Railroads", "Mergers", "Bibliography"], "subject_places": ["United States"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL15694124A"}, "role": "Compiler"}, {"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4702310A"}}], "key": "/works/OL43790012W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2025-07-29T15:16:04.994843"}, "last_modified": {"type": "/type/datetime", "value": "2025-07-29T15:16:04.994843"}}