ELSGOLC, L. E. <br/><br/>
CALCULUS OF VARIATIONS 

 - 1ST ED. 
 - Estados Unidos  ADDISON - WESLEY  1962 READING 
 - 178 
<br/><br/><label>LCCN: </label>7120 
<br/><br/><label>Dewey Class. No.: </label>515.64