Forsyth, A. R. <br/><br/>
Calculus of variations/ 
A. R Forsyth. 
 - New York:  Dover Publications,  1960 
 - xxii, 655p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>517 FOR-C