Grimaldi, Ralph P ; Ramana B V <br/><br/>
Discrete and combinatorial mathematics : an applied introduction 

 - 5 
 -   Pearson Education  South Asia  2004 
 - 1026 
<br/><br/><label>ISBN: </label>974 
<br/><br/><label>Dewey Class. No.: </label>511 GRI-D;1