{"physical_format": "Hardcover", "weight": "3.5 pounds", "publishers": ["Springer-Verlag Tokyo Inc."], "number_of_pages": 285, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "isbn_13": ["9784431705772"], "isbn_10": ["4431705775"], "publish_date": "1990", "key": "/b/OL9786654M", "authors": [{"key": "/a/OL3325894A"}, {"key": "/a/OL3325895A"}], "title": "Fukuheki No Geka", "type": {"key": "/type/edition"}, "id": 13130854, "physical_dimensions": "11.6 x 8.8 x 1 inches", "revision": 1}