{"first_sentence": {"type": "/type/text", "value": "The study of electromagnetic devices involves interactions between elemental electric charges at a macroscopic level."}, "physical_format": "Hardcover", "weight": "4.6 pounds", "languages": [{"key": "/l/eng"}], "type": {"key": "/type/edition"}, "publishers": ["CRC"], "number_of_pages": 850, "isbn_13": ["9780824741051"], "id": 11009969, "edition_name": "2 edition", "isbn_10": ["0824741056"], "publish_date": "April 2004", "key": "/b/OL8125567M", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "title": "Handbook of Electric Motors, Second Edition", "contributions": ["Hamid A. Toliyat (Editor)", "Gerald B. Kliman (Editor)"], "subjects": ["Engines & power transmission", "Technology", "Engineering - Mechanical", "Technology & Industrial Arts", "Science/Mathematics", "Engineering - Electrical & Electronic", "Machinery", "Technology / Electronics / General", "Engineering - General"], "physical_dimensions": "11.1 x 8.7 x 1.7 inches", "revision": 1}