Iyengar, N Ch S N <br/><br/>
Discrete mathematics  / 

 - New Delhi:  Vikas,  2003 
 - xiv, 376p. Bibl. Index. 
<br/><br/><label>ISBN: </label>8125913629 
<br/><br/><label>Dewey Class. No.: </label>511.5  / Iy97.DM