Brualdi, Richard A. <br/><br/>
Introductory  Combinatorics 

 - 4th /   2012. 
 - South  Asia:  dorling  Kindersley  (India)  Pvt. Ltd.,  2012. 
 - 630p. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Mathematics, General  Principles of  Math. 
<br/><br/><label>Dewey Class. No.: </label>511.6