Liu,C.L <br/><br/>
Elements of discrete mathematics 

 - 2nd. ed 
 - Delhi  Tata McGraw-Hill  2000 
 - xiv,433p.  23cm.PB. 
<br/><br/><label>ISBN: </label>007043476X 
<br/><br/><label>Dewey Class. No.: </label>511  / LTU