Harrison, J. A., Ph.D. The essence of electric power systems / J.A. Harrison. - London ; New York : Prentice Hall, 1996. - xiii, 117 p. : ill. ; 24 cm. - Essence of engineering . Includes bibliographical references (p.110-111) and index. ISBN: 0133975142 LCCN: 95033548 Subjects--Topical Terms: Electric power systems. Dewey Class. No.: 621.31