Nesbet, Robert K. <br/><br/>
Variational Principles and Methods in Theoretical Physics and Chemistry 
Nesbet, Robert K. 
 -  Cambridge University Press  2002 
 - On-campus e-Book by ebrary under Digital Library Program of Higher Education Commission (HEC) of Pakistan 
<br/><br/><label>ISBN: </label>9780511148774     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical Science