Lanczos, Cornelius <br/><br/>
Variational principles of mechanics / 
Cornelius Lanczos 
 - 4th ed. 
 - New York  Dover Publications  1970 
 - 418 p. 
<br/><br/><label>ISBN: </label>9780486650678 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Variational principles.<br/>Mechanics, Analytic.ﾠ
<br/><br/><label>Dewey Class. No.: </label>531.0151 LAN-C