{"languages": [{"key": "/l/jpn"}], "physical_format": "Unknown Binding", "weight": "1.1 pounds", "publishers": ["Kansai Daigaku Shuppanbu"], "number_of_pages": 308, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 20:50:18.033121"}, "id": 16432201, "isbn_13": ["9784873542638"], "isbn_10": ["4873542634"], "key": "/b/OL12484142M", "authors": [{"key": "/a/OL1458874A"}], "title": "Doteki keizai shisutemu no saiteki seigyo", "type": {"key": "/type/edition"}, "subjects": ["Mathematical optimization", "Economics, Mathematical"], "physical_dimensions": "8.4 x 6.1 x 0.8 inches", "revision": 1}