Boyce, William E. Elementary differential equations and boundary value problems / William E. Boyce, Richard C. DiPrima. - 9th ed. - Hoboken, NJ : Wiley, c2009. - xix, 796 p. : col. ill. ; 27 cm. Includes bibliographical references and index. ISBN: 978812651555 LCCN: 2010483814 Subjects--Topical Terms: Differential equations.Boundary value problems. LC Class. No.: QA371 / .B773 2009 Dewey Class. No.: 515.35 / BOY