Harary, Frank <br/><br/>
Graph theory; with a foreword and an appendix on the four colour theorem by V Krishnamurthy 

 - new Delhi  Narosa Publishing House  2001 
 - 286 p. 
<br/><br/> 2502 29/07/2013 36302 29/08/2013 Math (P) Seema Mehra Berwal 
<br/><br/><label>ISBN: </label> RS215 
<br/><br/><label>Dewey Class. No.: </label>511.5 H212G