{"languages": [{"key": "/l/eng"}], "physical_format": "Paperback", "subtitle": "Fractions Addition And Subtraction (Number sense)", "weight": "7.2 ounces", "publishers": ["Contemporary Books"], "number_of_pages": 80, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "id": 13345640, "isbn_13": ["9780072871098"], "isbn_10": ["0072871091"], "publish_date": "March 17, 2003", "key": "/b/OL9968130M", "authors": [{"key": "/a/OL3255481A"}], "title": "Number Sense", "type": {"key": "/type/edition"}, "subjects": ["Addition", "Fractions", "Subtraction", "GED (General Educational Development Tests)", "Reference", "Mathematics", "Science/Mathematics"], "physical_dimensions": "10.6 x 8.1 x 0.3 inches", "revision": 1}