Cotton, H. Electrical technology / H. Cotton. - 6th ed. C. G. S. ed. - London: Pitman, c1959. - xiv,600p. illus., 22 cm. - Engineering degree series . Includes index. LCCN: 44005027 Subjects--Topical Terms: Electrical engineering. LC Class. No.: TK145 / .C6 1943 Dewey Class. No.: 621.3/COE