Erickson, Martin J <br/><br/>
Introduction to combinatorics 

 - 2nd ed. 
 - Hoboken  John Wiley  2013 
 - xii, 230 p. 
<br/><br/> 1650 05/11/2014 IBS129 05/11/2014 Mathematics (NBHM) 
<br/><br/><label>ISBN: </label> USD94.95 
<br/><br/><label>Dewey Class. No.: </label>511.6 E44I(2)