{"subjects": ["Bibliography", "World's Columbian Exposition (1893 : Chicago, Ill.)", "World's Columbian Exposition (1893 : Chicago, Ill.) (uri) http://id.loc.gov/authorities/names/n80008759 (uri) http://viaf.org/viaf/sourceID/LC|n80008759"], "key": "/works/OL533385W", "title": "Annotated bibliography, World's Columbian Exposition, Chicago 1893", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL37603A"}}], "type": {"key": "/type/work"}, "covers": [1692523], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-08T04:36:55.977981"}, "last_modified": {"type": "/type/datetime", "value": "2025-08-09T12:36:57.764836"}}