{"languages": [{"key": "/l/eng"}], "physical_format": "Hardcover", "last_modified": {"type": "/type/datetime", "value": "2008-08-20 03:31:58.814456"}, "publishers": ["National Geographic Society"], "number_of_pages": 32, "isbn_13": ["9780792247319"], "isbn_10": ["0792247310"], "publish_date": "January 2005", "key": "/b/OL11151635M", "authors": [{"key": "/a/OL2069383A"}], "title": "Muscles", "type": {"key": "/type/edition"}, "id": 14728819, "revision": 2}