Sharma, J. N. <br/><br/>
Partial differential equations for engineers and scientists / 
J. N. Sharma, Kehar Singh. 
 - 2nd ed. 
 - [S.l.] :  Alpha Science Intl Ltd,  2000 
 - 339 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>1842654101 9781842654101 
<br/><br/><label>Dewey Class. No.: </label>515.353