{"languages": [{"key": "/l/spa"}], "physical_format": "Paperback", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 20:50:18.033121"}, "publishers": ["Author-Publishers"], "title": "Costes del Transporte Aereo Comercial", "id": 17520295, "isbn_13": ["9788440405951"], "isbn_10": ["8440405952"], "publish_date": "November 1991", "key": "/b/OL13264324M", "authors": [{"key": "/a/OL4231658A"}], "type": {"key": "/type/edition"}, "subjects": ["Aeronautics & Astronautics", "Technology & Industrial Arts"], "revision": 1}