Copperud, Carol <br/><br/>
Partial differential equations 

 - New Delhi  S. Chand & Co.   1976 
 - 280p. 
<br/><br/><label>ISBN: </label> RS 25.00 
<br/><br/><label>Source: </label> RS 25.00 
<br/><br/><label>Dewey Class. No.: </label>515.353 COP