{"languages": [{"key": "/l/eng"}], "physical_format": "Paperback", "subtitle": "Proceedings of the ISRM Workshop W3, Madrid, Spain, 14 July 2007", "weight": "15.5 ounces", "publishers": ["CRC"], "type": {"key": "/type/edition"}, "number_of_pages": 228, "id": 13625519, "isbn_13": ["9780415450188"], "isbn_10": ["0415450187"], "publish_date": "June 22, 2007", "key": "/b/OL10207147M", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "title": "Preservation of Natural Stone and Rock Weathering", "contributions": ["Pedro Sola (Editor)", "Jose Estaire (Editor)", "Claudio Olalla (Editor)"], "subjects": ["Civil Engineering, Surveying & Building", "Technology / Engineering / Civil", "Civil", "Technology & Engineering", "Technology & Industrial Arts", "Science/Mathematics"], "physical_dimensions": "9.6 x 6.8 x 0.6 inches", "revision": 1}