Spiegel, Murray R. Applied differential equations [by] Murray R. Spiegel. - 2d ed. - xv, 381 p. illus. 24 cm. - Prentice-Hall mathematics series . Bibliography: p. 365. LCCN: 67010753 Subjects--Topical Terms: Differential equations. Dewey Class. No.: 515/.35 / S755