Riordan, John <br/><br/>
Introduction to combinatorial analysis / 

 - New York:  John Wiley,  1958 
 - x, 244p. Bibl. Index. 
 - Wiley series in Probability and Mathematical Statistics .
<br/><br/><label>ISBN: </label>0691023654 
<br/><br/><label>Dewey Class. No.: </label>511.6  / R585.IC