{"title": "The theory of sound", "covers": [5856214], "first_publish_date": "1877", "key": "/works/OL1621605W", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL177869A"}}], "dewey_number": ["534.1"], "type": {"key": "/type/work"}, "subjects": ["Elastic plates and shells", "Sound", "Vibration", "Waves", "Ondes"], "latest_revision": 9, "revision": 9, "created": {"type": "/type/datetime", "value": "2009-12-09T22:00:03.130363"}, "last_modified": {"type": "/type/datetime", "value": "2021-12-28T15:28:06.972914"}}