{"isbn_13": ["9781851661688"], "physical_format": "Hardcover", "weight": "1.6 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["Routledge"], "number_of_pages": 443, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "id": 12910922, "edition_name": "1 edition", "isbn_10": ["1851661689"], "publish_date": "December 31, 1990", "key": "/b/OL9598340M", "authors": [{"key": "/a/OL3292759A"}], "title": "Concrete Pavements", "type": {"key": "/type/edition"}, "subjects": ["Pavement Design", "Science/Mathematics", "Pavements, Concrete", "Highway & traffic engineering"], "physical_dimensions": "9 x 5.8 x 1 inches", "revision": 1}