Coulthard, W. B. Transients in electric circuits using the Heaviside operational calculus [[Book] /] W.B. Coulthard . - 1ed. - London : Sir I. Pitman & Sons, ltd, 1941. - viii, 259 p. : ill ; 22 cm. includes index. "References" at end of most chapters. All age. Subjects--Topical Terms: Transients (Electricity).Calculus, Operational. Dewey Class. No.: 537.6