Polking J.C. <br/><br/>
Differential Equations 

 - 2nd 
 - New Jersey  Pearson Prentice Hall Upper Saddle River,  2006 
 - 599p 
<br/><br/><label>ISBN: </label>0131437380 
<br/><br/><label>LCCN: </label>nam a22     7a 4500 
<br/><br/><label>Dewey Class. No.: </label>515.35/POL/2006