V.K.Balakrishnan <br/><br/>
Schaum's outline of theory and problems of combinatorics 

 - Tata McGraw Hill, New Delhi  2005 
 - viii,200p 
<br/><br/><label>ISBN: </label>0-07-003575-X 
<br/><br/><label>Dewey Class. No.: </label>511.4 Bal