{"physical_format": "Library Binding", "weight": "1.8 pounds", "publishers": ["Reprint Services Corp"], "number_of_pages": 366, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "id": 14548959, "isbn_13": ["9780781260428"], "isbn_10": ["0781260426"], "publish_date": "January 1906", "key": "/b/OL11003763M", "authors": [{"key": "/a/OL2029622A"}], "title": "Westward Extension, 1841-1850 (BCL1 - U.S. History)", "type": {"key": "/type/edition"}, "subjects": ["Literature"], "physical_dimensions": "9.2 x 6.2 x 1.3 inches", "revision": 1}