Classic papers in combinatorics   
ed. by Ira Gessel and Gian-Carlo Rota. 
 - Boston  Birkhauser  1987 
 - x, 489p. 
<br/><br/><label>ISBN: </label>0817633642 
<br/><br/><label>Dewey Class. No.: </label>511.6  / N874