{"languages": [{"key": "/l/eng"}], "physical_format": "Hardcover", "subtitle": "Proceedings of the Conference Organized by the Institution of Civil Engineers and Held in London on 13 March", "weight": "12.8 ounces", "publishers": ["American Society of Civil Engineers"], "number_of_pages": 156, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "id": 14081099, "isbn_13": ["9780727715319"], "isbn_10": ["0727715313"], "publish_date": "March 1990", "key": "/b/OL10591310M", "authors": [{"key": "/a/OL2798155A"}], "title": "Conservation of Engineering Structures", "type": {"key": "/type/edition"}, "subjects": ["Conservation of buildings & building materials", "Civil", "Structural Engineering", "Technology & Industrial Arts", "Science/Mathematics"], "physical_dimensions": "9.3 x 6.2 x 0.6 inches", "revision": 1}