Gupta, A.S. <br/><br/>
Calculus of Variations with Applications /-, 
by A.S. Gupta 
 - Delhi,  PHI Learing  2019. 
 - 242p.  20 cm. 
<br/><br/><label>ISBN: </label>9788120311206 
<br/><br/><label>Dewey Class. No.: </label>515.64  / Gup.