Forsyth, A. R. <br/><br/>
Calculus of variations / 
by A.R. Forsyth. 
 - New York :  Dover Publications,  1960. 
 - xxii, 646 p. 
<br/><br/><label>LCCN: </label>60-2846 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus of variations.<br/>Calculus.