Nasar, S. A. Electromechanics and electric machines / S. A. Nasar, L. E. Unnewehr. - 2nd ed. - New York : Wiley, 1983. - 461 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0471080918 Subjects--Topical Terms: Electric machinery.Electromechanical devices.