Ahsan, Zafar Differential equations and their applications / Ahsan Zafar. - 2nd ed. - New Delhi : Prentice Hall, c2004. - xiv, 514 p. : ill. ; 25 cm. - Texts in applied mathematics ; 11 . Includes index. ISBN: 8120325230 LCCN: 92024317 Subjects--Topical Terms: Differential equations. LC Class. No.: QA371 / .B795 2004 Dewey Class. No.: 515.35 / AHS