{"physical_format": "Hardcover", "weight": "7.8 ounces", "title": "Heidi (Usborne Young Reading)", "number_of_pages": 64, "isbn_13": ["9780746069288"], "isbn_10": ["0746069286"], "key": "/b/OL7958932M", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "type": {"key": "/type/edition"}, "id": 10794220, "physical_dimensions": "7.8 x 5.3 x 0.5 inches", "revision": 1}