Gelfand, I. M. <br/><br/>
Calculus of variations / 
I. M. Gelfand and S. V. Fomin 
 - New Jersey :  Prentice - Hall,  c1963. 
 - vii, 232 p.   diagrs.   24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/> Calculus of variations.
<br/><br/><label>LC Class. No.: </label>QA315  / .G45 1963