Wilf, Herbert S.,  1931- <br/><br/>
Generating functionology / 
Herbert S. Wilf 
 - 2nd ed. 
 - Boston :  Academic Press,  c1994 
 - ix, 228 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0127519564 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Generating functions
<br/><br/><label>Dewey Class. No.: </label>515.55