Holton,D.A. <br/><br/>
Combinatorial mathematics 

 - New York  Springer-Verlag  1974 
 - 148 p. 
 - Lecture notes in mathematics/edited by A.Dold and Eckmann,B. .
<br/><br/><label>ISBN: </label>3-540-06903-8 
<br/><br/><label>Dewey Class. No.: </label>B2M9 L4