Laithwaite, E. R. Electric energy : its generation, transmission, and use / [Book]. E. R. Laithwaite and L. L. Freris. - London ; New York : McGraw-Hill Book Co., 1980. - xv, 365 p. : ill. ; 24 cm. - McGraw-Hill electrical engineering series . Includes bibliographical references and index. ISBN: 0070841098 LCCN: 79042872 Subjects--Topical Terms: Electric power systems.Electric power.