{"isbn_13": ["9780071475228"], "physical_format": "Hardcover", "subtitle": "Maintenance, Operation, and Repair", "weight": "1.6 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["McGraw-Hill Professional"], "number_of_pages": 352, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "id": 12507187, "edition_name": "1 edition", "isbn_10": ["0071475222"], "publish_date": "December 12, 2006", "key": "/b/OL9256277M", "authors": [{"key": "/a/OL2637162A"}], "title": "Heating Boiler Operators  Manual", "type": {"key": "/type/edition"}, "subjects": ["Heating, lighting, ventilation", "Technology & Industrial Arts", "Technology", "Science/Mathematics", "Engineering - Mechanical", "Technology / Engineering / Mechanical", "Handbooks, manuals, etc", "Steam-boilers"], "physical_dimensions": "9.1 x 6.1 x 1.1 inches", "revision": 1}