Berman, Gerald <br/><br/>
Introduction to combinatorics 
<label>/ by </label> Berman, Gerald 
<label>;</label> Fryer, K.D. 
 - New York  Academic Press  1972 
 - xiii, 300p.  ill.  24 cm. 
<br/><br/><label>ISBN: </label>0120927500 
<br/><br/><label>Dewey Class. No.: </label>511.6  / BER