Lovasz, L. Pelikan, J. and Vesztergombi, K. <br/><br/>
Discrete mathematics  : elementary and beyond / 

 - New York:  Springer-Verlag,  2003 
 - ix, 290p. Bibl. Index. 
 - Undergraduate texts in Mathematics .
<br/><br/><label>ISBN: </label>0387955852 
<br/><br/><label>Dewey Class. No.: </label>511.5  / L896.DM