{"first_publish_date": "1995", "title": "The traveler's guide to the Pony Express trail", "covers": [790290], "subject_places": ["Pony Express National Historic Trail"], "lc_classifications": ["F590.3 .B46 1995"], "key": "/works/OL2296568W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL302529A"}}], "dewey_number": ["917.804/33"], "type": {"key": "/type/work"}, "subjects": ["Guidebooks", "Pony express"], "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2009-12-09T23:21:06.680817"}, "last_modified": {"type": "/type/datetime", "value": "2021-12-24T20:42:13.273149"}}