Grimaldi, Ralth P. and Ramana, B.V. <br/><br/>
Discrete and cobinatorial mathematics 

 - 5th ed. 
 - Chennai  Pearson  2004 
<br/><br/><label>ISBN: </label>9788177584240 
<br/><br/><label>Dewey Class. No.: </label>510  / T04 GRI