Wilf, Herbert S. <br/><br/>
Algorithms and complexity / 
Herbert S. Wilf 
 - 2nd ed. 
 - Natick, Mass.:  A K Peters,  2002 
 - ix, 219 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>1568811780 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Problem solving--Data processing<br/>Computer algorithms