{"title": "The Oregon Trail", "authors": [{"key": "/authors/OL29501A"}], "publish_date": "January 1978", "publishers": ["Books on Tape"], "languages": [{"key": "/languages/eng"}], "isbn_13": ["9785557023665"], "physical_format": "Audio Cassette", "isbn_10": ["5557023666"], "type": {"key": "/type/edition"}, "subjects": ["United States - Pacific - Oregon", "Unabridged Audio - Misc.Nonfiction"], "source_records": ["amazon:5557023666"], "key": "/books/OL12580240M", "works": [{"key": "/works/OL8166359W"}], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2008-04-30T20:50:18.033121"}, "last_modified": {"type": "/type/datetime", "value": "2026-03-01T17:17:03.625169"}}