Liu, C. L., <br/><br/>
Elements Of Discrete Mathematics 
C. L. Liu 
 - 2nd ed. 
 - New Delhi :  Tata McGraw-Hill Publishing Company Limited,  c1985. 
 - xiv, 433 p.:  [149] 
<br/><br/><label>ISBN: </label>007043476x 
<br/><br/><label>Dewey Class. No.: </label>511.3  / LIU/ELE