Buckley, Fred. <br/><br/>
Distance in graphs / 
Fred Buckley, Frank Harary. 
 - Redwood City, Calif. :  Addison-Wesley Pub. Co.,  c1990. 
 - xiii, 335 p. :  ill. ; 
<br/><br/><label>ISBN: </label>0201095912 
<br/><br/><label>Subjects--Index Terms: </label>Graph theory 
<br/><br/><label>Universal Decimal Class. No.: </label>519.17  / BUC