Harary, Frank. <br/><br/>
Proof techniques in graph theory ; proceedings /ed. by Frank Harary   

 - New York  Academic Press  1969 
 - xv, 330p 
<br/><br/><label>Subjects--Index Terms: </label>Graph theory 
<br/><br/><label>Dewey Class. No.: </label>511.5  / N692