Reddy, J. N. <br/><br/>
Energy Principles and Variational Methods in Applied Mechanics 

 - 3rd 
 - USA  John Wiley  2017 
 - xxvi, 730p. 
<br/><br/><label>ISBN: </label>9781119087373 
<br/><br/><label>Dewey Class. No.: </label>515.64  / R26E