Oppenheimer, Samuel L. Direct and alternating currents [by] Samuel L. Oppenheimer, F. Roger Hess, Jr. [and] Jean Paul Borchers. - 2nd ed. - New York McGraw-Hill Book Co. [c1973]. - 580 p. illus. 24 cm. ISBN: 0070476659 Subjects--Topical Terms: Electric circuits.Electric currents. Dewey Class. No.: Cir 621.31912 Op5 1973