{"physical_format": "Hardcover", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "publishers": ["Fourth Estate"], "number_of_pages": 576, "id": 13130891, "isbn_13": ["9781857028263"], "isbn_10": ["1857028260"], "publish_date": "October 29, 1998", "key": "/b/OL9786398M", "authors": [{"key": "/a/OL1608362A"}], "title": "Maria Callas", "type": {"key": "/type/edition"}, "subjects": ["Biography: film, television & music", "Opera", "Western music: periods & styles"], "revision": 1}