{"identifiers": {"goodreads": ["5084937"], "librarything": ["483669"]}, "title": "Human Variation", "subtitle": "Races, Types, and Ethnic Groups", "authors": [{"key": "/authors/OL381708A"}], "publish_date": "July 11, 1997", "publishers": ["Prentice Hall College Div"], "isbn_13": ["9780132695237"], "covers": [89908], "languages": [{"key": "/languages/eng"}], "isbn_10": ["0132695235"], "type": {"key": "/type/edition"}, "source_records": ["amazon:0132695235"], "key": "/books/OL7340255M", "number_of_pages": 396, "works": [{"key": "/works/OL2620268W"}], "latest_revision": 7, "revision": 7, "created": {"type": "/type/datetime", "value": "2008-04-29T13:35:46.876380"}, "last_modified": {"type": "/type/datetime", "value": "2025-12-23T03:32:15.739104"}}