Knopp, Konrad, 1882-1957. Elements of the theory of functions; / translated by Frederick Br agemihl. - [1st American ed. - New York] Dover Publications [1953, c1952] - 140 p. : illus.; 21 cm. Includes index. LCCN: 53-007031 Subjects--Topical Terms: Calculus Dewey Class. No.: 515.25