{"isbn_13": ["9780071493765"], "physical_format": "Paperback", "weight": "2.3 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["McGraw-Hill Professional"], "number_of_pages": 464, "last_modified": {"type": "/type/datetime", "value": "2008-08-30 21:21:19.200385"}, "id": 12507220, "edition_name": "1 edition", "isbn_10": ["007149376X"], "publish_date": "May 17, 2007", "key": "/b/OL9256711M", "authors": [{"key": "/a/OL590512A"}, {"key": "/a/OL237006A"}], "title": "Welding Licensing Exam Study Guide (McGraw-Hill's Welding Licensing Exam Study Guide)", "type": {"key": "/type/edition"}, "subjects": ["Welding", "Technology", "Science/Mathematics", "Metallurgy", "Technical & Manufacturing Trades", "Vocational", "Study Aids / Tests", "Engineering - Mechanical", "Certification", "Examinations", "Examinations, questions, etc", "Study Guides", "Welders (Persons)"], "physical_dimensions": "10.8 x 8.5 x 1 inches", "revision": 2}