Sanchez,David A. <br/><br/>
Ordinary Differential Equations And Stability Theory:An Introduction 
Sanchez,David A. 
 - New York  Dover  1968 
 - 143  Illustration,index,reference & graph 
<br/><br/><label>ISBN: </label>486638286 
<br/><br/><label>Dewey Class. No.: </label>515  / Sa552