Ralph P. Grimaldi and B.V. Ramana <br/><br/>
Discrete and combination mathematics : an applied introduction 

 - 5th ed. 
 - Noida  Pearson  2018 
 - xxvi, 1026p.  25x20cm. 
<br/><br/><label>ISBN: </label>9788177584240  949 
<br/><br/><label>Dewey Class. No.: </label>511.33  / GRI/DIS