Coddington, Earl A. An introduction to ordinary differential equations / Earl A. Coddington. - New Delhi : PHI learing, c 2010. - xi, 292 p. : ill. ; 22 cm. Includes index. 339 339 ISBN: 978-81-203-0361-4 Subjects--Topical Terms: Differential equations. Dewey Class. No.: 515.35 / C648i