Jordan,D.W. <br/><br/>
Nonlinear ordinary differential equations 
by D.W.Jordan and P.Smith 
 - 2nd ed. 
 - Oxford  Clarendon Press  1987 
 - ix,381p.;22cm. -. 
 - Oxford applied mathematics and computing science series .
<br/><br/> Library has 3d ed. also. 
<br/><br/><label>Dewey Class. No.: </label>515.352  / JOR