Tenenbaum, Morris. Ordinary differential equations : an elementary textbook for students of mathematics, engineering, and the sciences / Morris Tenenbaum and Harry Pollard. - New York : Harper & Row, c1963. - xvii,808p. : ill. ; 23 cm. - Harper's mathematics series . Includes index. Includes bibliography (p. 791). english LCCN: 63007401 Subjects--Topical Terms: Differential equations. LC Class. No.: QA372 / .T4 Dewey Class. No.: 517.38/TEO