{"identifiers": {"goodreads": ["1482241"], "librarything": ["22781"]}, "title": "Mortal Engines", "authors": [{"key": "/authors/OL1428037A"}], "publish_date": "April 1, 2004", "publishers": ["Simon & Schuster"], "isbn_13": ["9780439979436"], "covers": [279981], "languages": [{"key": "/languages/eng"}], "isbn_10": ["0439979439"], "type": {"key": "/type/edition"}, "source_records": ["amazon:0439979439"], "key": "/books/OL7516629M", "number_of_pages": 293, "works": [{"key": "/works/OL5826881W"}], "latest_revision": 7, "revision": 7, "created": {"type": "/type/datetime", "value": "2008-04-29T13:35:46.876380"}, "last_modified": {"type": "/type/datetime", "value": "2026-01-22T12:03:20.460261"}}