Churchill, Ruel V. Introduction to complex variables and applications / Ruel V. Churchill. - 1a ed. - New York : Mcgraw-hill, 1948 - 216 p. : íl. ; 23 cm. Incluye apéndice e índice Subjects--Topical Terms: Funciones de variables complejas LC Class. No.: QA331.7 / C48 1948