Hughes, Edward, 1888- Electrical technology / Edward Hughes. - 5th ed. in SI units. - London ; New York : Longman, 1977. - xviii, 710 p. : ill. ; 21 cm. Includes index. ISBN: 0582411459 0582411440 LCCN: 76012581 Subjects--Topical Terms: Electrical engineeringElectronics Dewey Class. No.: 621.3