A. M. Arthurs <br/><br/>
Complementary variational Principles. Ed 2 

 - 2nd Edition. 
 - Oxford  Oxford University Press  1980 
 - 154p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-19-853532-5 
<br/><br/><label>Dewey Class. No.: </label>517.4  / ART