Ewing, George M. <br/><br/>
Calculus of variations with applications  / 

 - New York:  Dover,  1985 
 - viii, 343p. Index. Bibl. 
<br/><br/> "First published by W. W. Norton, New York, 1969" 
<br/><br/><label>Dewey Class. No.: </label>515.64  / Ew95.CV