Gelfand, I M. <br/><br/>
Calcullus of variations / 
By I.M. Gelfand, S V Fomin. 
 - 1st Ed. 
 - Mineola :  Dover Publications,  2000. 
 - 232p. ;  00 cm. 
<br/><br/><label>ISBN: </label>9780486414485 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHEMATICS.
<br/><br/><label>Dewey Class. No.: </label>515.64  / GEL