{"languages": [{"key": "/l/eng"}], "physical_format": "Hardcover", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "publishers": ["CRC"], "title": "Ultrasonics Data", "id": 15081185, "isbn_13": ["9780824758301"], "isbn_10": ["0824758307"], "publish_date": "August 15, 2008", "key": "/b/OL11431898M", "authors": [{"key": "/a/OL950397A"}], "type": {"key": "/type/edition"}, "subjects": ["Dynamics & vibration", "Energy", "Science / Energy", "Science", "Design and construction", "Industrial applications", "Ultrasonic equipment", "Ultrasonic waves", "Ultrasonics", "Science/Mathematics"], "revision": 1}