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

 - 2nd 
 - New Delhi  McGraw-Hill  1985 
 - 433p. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Discrete mathematics
<br/><br/><label>Dewey Class. No.: </label>511.6  / L96E