Van valkenburg, M. E  <br/><br/>
Network analysis. 
M. E Van valkenburg,  
 - New Delhi:  Prentice hall of India.  1976. 
 - xv, 571p. 
<br/><br/><label>Subjects--Index Terms: </label>Network analysis. 
<br/><br/><label>Universal Decimal Class. No.: </label>681.324  / VAN