WILLIAMSON.S G <br/><br/>
COMBINATORICS FOR COMPUTER SCIENCE 

 - NEW YORK  DOVER  2002 
 - xliii+479p.,21X14Cms 
<br/><br/><label>ISBN: </label>0-486-42076-0 
<br/><br/><label>Dewey Class. No.: </label>512 W729