Nagle, R. Kent. Fundamentals of differential equations. - 7th ed. / R. Kent Nagle, Edward B. Saff, Arthur David Snider. - Boston : Pearson/Addison-Wesley, c2008. - xxi, 686 p. : ill. ; 24 cm. + 1 CD-ROM (4 3/4 in.) Includes bibliographical references and index. ISBN: 0321388410 9780321410481 LCCN: 2006049606 Subjects--Topical Terms: Differential equations--Textbooks. LC Class. No.: QA371 / .N24 2008 Dewey Class. No.: 515/.35