Rao, K. Sankara. <br/><br/>
Introduction to partial differential equations /  
K Sankara Rao. 
 - 3rd ed. 
 - New Delhi :   PHI Learning ,   2011. 
 - xii,488p. :   Ills.,figs. ;   24cm. .  
<br/><br/><label>ISBN: </label>9788120342224  RS325.00 
<br/><br/><label>Subjects--Index Terms: </label>DIFFERENTIAL EQUATIONS, PARTIAL 
<br/><br/><label>Dewey Class. No.: </label>515.353  / RAO/I