Berman Gerald <br/><br/>
Introduction to combinatorics. 
Berman Gerald; Fryer K D 
 -  1972 
<br/><br/><label>Standard No.: </label>81563 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B217, L2