{"first_publish_date": "1966", "last_modified": {"type": "/type/datetime", "value": "2020-08-19T15:08:51.165466"}, "title": "A nation moving west", "created": {"type": "/type/datetime", "value": "2009-12-09T22:41:19.366248"}, "covers": [10365576], "subject_places": ["West (U.S.)"], "lc_classifications": ["F591 .R5"], "latest_revision": 4, "key": "/works/OL1997502W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL240480A"}}], "dewey_number": ["978.02"], "type": {"key": "/type/work"}, "subjects": ["Frontier and pioneer life", "History", "Sources", "West (u.s.), history"], "revision": 4}