Edwards, C. Henry 1937- Elementary differential equations / C. Henry Edwards, David E. Penney ; with the assistance of David Calvis. - 6th ed. - Upper Saddle River, N.J. : Pearson Prentice Hall, c2008. - x, 623, I-6 p. : ill. ; 26 cm. Tables on endpapers. ISBN: 9780132397308 (hbk.) 0132397307 (hbk.) LCCN: 2008299267 Subjects--Topical Terms: Differential equations.Differential equations--Computer programs. LC Class. No.: QA371 / .E3 2008 Dewey Class. No.: 515/.35 / 1