{"first_sentence": {"type": "/type/text", "value": "The study of ultrasonics is the study of a form of energy."}, "physical_format": "Hardcover", "subtitle": "Fundamentals, Technologies and Applications, Third Edition", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "languages": [{"key": "/l/eng"}], "publishers": ["CRC"], "title": "Ultrasonics", "isbn_13": ["9780824758899"], "id": 12574357, "edition_name": "3 edition", "isbn_10": ["0824758897"], "publish_date": "July 15, 2008", "key": "/b/OL9320599M", "authors": [{"key": "/a/OL950397A"}, {"key": "/a/OL3235502A"}], "type": {"key": "/type/edition"}, "subjects": ["Applied mathematics", "Mathematics and Science", "Science/Mathematics", "Mathematics", "Applied", "Mathematics / Advanced"], "revision": 1}