Ross, Shepley L. Differential equations................... Shepley L. Ross. - 3rd ed. - New Delhi: John Wiley, 2004. - vii,807 p. ; 23 cm. (Rk#6.b Sh#03) ISBN: 8126515376 (paperback) 9788126515370 (paperback) Source: Atlas Book PKR 2654.08 Dewey Class. No.: 515.35