Valakenburg, M.E. Van <br/><br/>
Network analysis 

 - 3rd ed. 
 - New Delhi  Prentice-Hall of India  1989 
 - xv,571 p. 
<br/><br/><label>ISBN: </label>0-87692-156-10 
<br/><br/><label>Dewey Class. No.: </label>S/C-S/T D66 L4;5