Rosen, Kenneth H. <br/><br/>
Discrete mathematics and its applications / 
Kenneth H. Rosen. 
 - 6th ed. 
 - [S.l.] :  TBS,  2006. 
 - 1 v. (unpaged) ;  24 cm. 
<br/><br/><label>ISBN: </label>0070648247 (paperback) 9780070648241 (paperback)