Alexander Gray; revised by P.M. Lincoln - Electrical Machine Design. The Design and Specification of Direct and Alternating Current Machinery (McGraw-Hill Book Company, New York & London, 1926, 2nd edition, 11th impression) —Very good condition, minor signs of wear on the covers, excellent spine, no writing or marks except for some writing in pen and pencil on inside of front cover, front endpaper, and title page —Hardcover