Zill, Dennis G., 1940- A first course in differential equations with applications / Dennis G. Zill. - 2nd ed. - Boston, Mass. : Prindle, Weber & Schmidt, c1982. - ix, 475, [45] p. : ill. ; 24 cm. Includes index. ISBN: 0871503190 0534980112 Subjects--Topical Terms: Differential equations. Dewey Class. No.: 515.35 / ZIF