Penner, R.C. <br/><br/>
Discrete Mathematics  Proof Techniques and Mathematical Structures 

 - New Delhi  Allied Publishers  1999 
 - xv,469p.  22 cm. PB 
<br/><br/><label>ISBN: </label>8177644610 
<br/><br/><label>Dewey Class. No.: </label>511  / PEN