Zill, Dennis G Succeeding with differential equations / Dennis G. Zill, Warren S. Wright. - Eighth edition - Andover : Cengage Learning, c2013. - 1 v., various pagings : illustrations ; 26 cm. Includes index. ISBN: 9789814510639 (NP) Subjects--Topical Terms: Differential equations. LC Class. No.: QA 371 Z54 2013 CIRC