Richard Johnsonbaugh <br/><br/>
Discrete Mathematics 
Richard Johnsonbaugh 
 - Seventh Edition 
 - Singapore  Pearson Education South Asia Pte Ltd.  c2009 
 - xvii,766 p  ill. 
<br/><br/><label>ISBN: </label>978-981-0695-92-7 
<br/><br/><label>Dewey Class. No.: </label>510