Harary Frank Ed. <br/><br/>
Proceeding on proof techniques in graph theory 

 - New York       Academic Press         1969 
 - xv,330p.  cm. 
<br/><br/><label>Standard No.: </label>40253 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Graph theory<br/> Nomography<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B44p1,N68, K9