{"languages": [{"key": "/l/eng"}], "physical_format": "Hardcover", "subtitle": "1955-Present (World Explorers)", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "publishers": ["National Geographic Society"], "number_of_pages": 32, "id": 14728910, "isbn_13": ["9780792245469"], "isbn_10": ["0792245466"], "publish_date": "January 2004", "key": "/b/OL11151590M", "authors": [{"key": "/a/OL24637A"}], "title": "Missions in Space", "type": {"key": "/type/edition"}, "subjects": ["General", "Children's Books/Ages 9-12 Fiction"], "revision": 1}