Rustagi, G. S. <br/><br/>
Variational methods in statistics   

 - New York  Academic Press  1976 
 - xvi, 236p. 
 - Mathematics in Science & Engineering, a series of monographs & textbooks   121 .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>519.535  / R971.VM