{"languages": [{"key": "/l/eng"}], "physical_format": "Paperback", "subtitle": "Toward an Ethic in the 1980S.", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "publishers": ["Natl Trust for Historic"], "number_of_pages": 248, "id": 11130290, "isbn_13": ["9780891330790"], "isbn_10": ["0891330798"], "publish_date": "March 1981", "key": "/b/OL8219671M", "authors": [{"key": "/a/OL2897416A"}], "title": "Preservation", "type": {"key": "/type/edition"}, "subjects": ["Architecture", "Conservation and restoration", "Architectural Preservation And Restoration", "Historic buildings", "Historic preservation", "United States"], "revision": 1}