{"subtitle": "their economic significance and legal status.", "last_modified": {"type": "/type/datetime", "value": "2010-12-03T13:44:17.493365"}, "created": {"type": "/type/datetime", "value": "2009-12-09T20:42:11.538566"}, "title": "Trade associations", "subject_places": ["United States"], "first_publish_date": "1925", "latest_revision": 4, "key": "/works/OL1195231W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL120662A"}}], "type": {"key": "/type/work"}, "subjects": ["Industrial efficiency", "Professional associations", "Trade and professional associations", "Trade associations"], "revision": 4}