Prasad, Phoolan <br/><br/>
Partial differential equations 

 - New Delhi  Wiley  1985 
 - 252p. 
<br/><br/><label>ISBN: </label> RS 25.50 
<br/><br/><label>Source: </label> RS 25.50 
<br/><br/><label>Dewey Class. No.: </label>515.3 PRA