Industrial electricity; a simple treatise of fundamentals of electricity, machines, and controlling equipment / John M. Nadon and Bert J. Gelmine. Nadon, John M. Gelmine, Bert J., author. Electricity. 621.3 NA9 A revision of the authors' lesson sheets prepared for the course in elementary electricity given at the Apprentice School of the Ford Motor Company. cf. Pref. "Sixth printing." "First published May 1939; reprinted ... April 1942." Includes index. New York, D. Van Nostrand Company, Inc. c1939 c1939 1942 Text xii, 607 p. : eng