{"title": "The Oregon Trail", "subtitle": "Sketches of Prairie and Rocky Mountain Life", "authors": [{"key": "/authors/OL29501A"}], "publish_date": "June 1980", "publishers": ["Corner House Pub"], "weight": "1.9 pounds", "physical_format": "Hardcover", "subjects": ["Frontier and pioneer life", "Indians of North America", "Oregon Trail", "West (U.S.)", "Children: Young Adult (Gr. 7-9)"], "languages": [{"key": "/languages/eng"}], "isbn_13": ["9780879281038"], "isbn_10": ["0879281030"], "oclc_numbers": ["123105431"], "type": {"key": "/type/edition"}, "physical_dimensions": "8.5 x 5.8 x 2 inches", "source_records": ["amazon:0879281030"], "key": "/books/OL9871978M", "number_of_pages": 479, "works": [{"key": "/works/OL8166359W"}], "latest_revision": 5, "revision": 5, "created": {"type": "/type/datetime", "value": "2008-04-30T09:38:13.731961"}, "last_modified": {"type": "/type/datetime", "value": "2026-01-05T03:00:01.291994"}}