Berg, Ernst Julius. 1871-1941. Heaviside's operational calculus as applied to engineering and physics / Ernst Julius Berg. - 2nd ed. - New York : McGraw-Hill book company, inc., c1936. - xv,258p. : ill. ; 21 cm. - Electrical engineering texts. . Includes index. Bibliography (p. 253-256). english LCCN: 36019550 Subjects--Personal Names: Heaviside, Oliver, 1850-1925. Subjects--Topical Terms: Electric currents.Calculus, Operational. LC Class. No.: QC601 / .B4 1936 Dewey Class. No.: 537.6/BEH