{"languages": [{"key": "/l/eng"}], "physical_format": "Paperback", "weight": "14.4 ounces", "publishers": ["Wadsworth Pub Co"], "number_of_pages": 400, "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "id": 10414446, "isbn_13": ["9780495146353"], "isbn_10": ["0495146358"], "publish_date": "October 28, 2005", "key": "/b/OL7651511M", "authors": [{"key": "/a/OL390335A"}], "title": "American Music in the Twentieth Century", "type": {"key": "/type/edition"}, "subjects": ["History & Criticism - General", "Music Of The 20th Century", "Music"], "physical_dimensions": "9.2 x 6.2 x 0.8 inches", "revision": 1}