Nelson, Roy; Wilson, Robin J <br/><br/>
Graph colourings / 
Nelson, Roy; Wilson, Robin J 
 -  Longman Scientific & Technical, New York,  1990 
 - p. ;  22 cm. 
<br/><br/><label>ISBN: </label>0470215097 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Graph theory; Mathematics
<br/><br/><label>Dewey Class. No.: </label>511.5 NEL-G