Grimaldi, Ralph P. <br/><br/>
Discrete Combinatorial Mathematics :  An Applied Introduction / 
Ralph P. Grimaldi 
 - 3rd ed. 
<br/><br/> All colleges  Mathematics 
<br/><br/><label>ISBN: </label>0201549832 
<br/><br/><label>Dewey Class. No.: </label>510 G88