Krishnamurthy,V <br/><br/>
Combinatorics:Theory & Applications. 

 - 1st. 
 - New Delhi.  East-West Press.  1997 
 - 483p. 
<br/><br/><label>ISBN: </label> RS 225.00 
<br/><br/><label>Dewey Class. No.: </label>Computer Science.