VAN VALKENBURG(M E) <br/><br/>
Network analysis 

 - 3rd ed. 
 - New Delhi  Prentice Hall of India  2008 
 - Pbk. xv p. + 571 
<br/><br/><label>ISBN: </label>9788131701584 
<br/><br/><label>Source: </label>645/10-11