WILLIAMSON, R.E. <br/><br/>
Introduction to Differential Equations and Dynamical Systems 

 - 3rd Ed. 
 - Boston,   McGraw-Hill, WCB  1997 
 - xiii,690p., ill.,  Index,  26cm. 
<br/><br/><label>ISBN: </label>0-07-070594-1 
<br/><br/><label>Dewey Class. No.: </label>515.35 WIL