Wayland, Harold. Differential equations applied in science and engineering / Harold Wayland. - Princeton, N.J. : Van Nostrand, c 1964. - 353 p. : ill. ; 23 cm. Includes index. 301 301 LCCN: 57008155 Subjects--Topical Terms: Differential equations. Dewey Class. No.: 517.38 / W365d