{"identifiers": {"librarything": ["17665"], "goodreads": ["6505913"]}, "title": "Prelude to Foundation", "publish_date": "October 1991", "publishers": ["Spectra"], "physical_format": "Paperback", "edition_name": "Reissue edition", "isbn_13": ["9780792423317"], "isbn_10": ["0792423313"], "type": {"key": "/type/edition"}, "subjects": ["Science Fiction"], "source_records": ["amazon:0792423313"], "key": "/books/OL7810923M", "works": [{"key": "/works/OL46172W"}], "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2008-04-29T15:03:11.581851"}, "last_modified": {"type": "/type/datetime", "value": "2026-04-14T03:33:23.558772"}}