Acarnley, P. P. Stepping motors : a guide to modern theory and practice / P. P. Acarnley. - 3rd rev. ed. - London : P. Peregrinus on behalf of the Institution of Electrical Engineers, 1992. - viii, 162 p. : ill. ; 23 cm. - IEE control engineering series ; 19. . Includes index. includes bibliographical references. ISBN: 0863410278 (pbk.) Subjects--Topical Terms: Stepping motors.