Lanczos, Cornelius  x <br/><br/>
The variational principles of mechanics  x 

 - 3rd ed.  
 - Toronto   U. of Toronto P.   1966  
 - xxv, 375p.  
<br/><br/>Includes 
<br/><br/><label>ISBN: </label>x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanics  Mechanics  
<br/><br/><label>Dewey Class. No.: </label>531/LAV