Liu, C L Mohapatra, D P <br/><br/>
Elements of Discrete Mathematics :  A Computer Oriented Approach / 
C L Liu and D P Mohapatra  
 - 4th ed. 
 - New Delhi:  McGraw Hil,  c1985. 
 - xviii, 627 p. 
<br/><br/><label>ISBN: </label>9781259006395 
<br/><br/><label>Dewey Class. No.: </label>519.1   / LIU/E