Kloeffler, Royce G.; Kerchner, Russell M.; [and] Brenneman, Jesse L. Direct-current machinery / Royce G. Kloeffler... [and two others] - Revised Edition - xiv, 395 pages : illustrated ; 22 cm. Includes index. Subjects--Topical Terms: Electric MachineryMachinery Dewey Class. No.: 621.3132