Liu, Chung Laung <br/><br/>
Elements of discrete mathematics 

 - 2nd ed. 
 - New Delhi  Tata McGraw-Hill  1985 
 - xiv, 433p.   
<br/><br/>   
<br/><br/><label>ISBN: </label>0-07-043476-X 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Discrete mathematics  Algebra, Boolean  Boolean algebra  Group theory  Set theory  SYMBOLIC LOGIC  Permutations, Combinations 
<br/><br/><label>Dewey Class. No.: </label>519.11