Ore, Oystein. <br/><br/>
Theory of graphs   
by Oystein Ore 
 - Providence  American Mathematical Socity  1962 
 - x,270p. 
 - AMS Colloquium Publications  V.38 .
<br/><br/><label>LCCN: </label>61-15687 
<br/><br/><label>Dewey Class. No.: </label>511.5  / N61