Churchill, Ruel Vance, 1899- Introduction to complex variables and applications. - 1st ed. - New York : McGraw-Hill Book Co., 1948. - vi, 216 p. : diagrs. ; 24 cm. - 517.5 . Bibliography: p. 203-204. Subjects--Topical Terms: Functions of complex variables. Dewey Class. No.: 517.5