Van, Valkenburg <br/><br/>
Network analysis 

 - 3rd ed 
 - Prentice-Hall of India, New Delhi  1983 
 - xv, 571 
<br/><br/><label>ISBN: </label>0-87692-156-10 
<br/><br/><label>Dewey Class. No.: </label>621.3851 Van