Leach. Donald P.  <br/><br/>
Digital Principles and Aplications  

 - 6th  
 - New Delhi;  Tata Mc Graw Hill Publishing Company   2008 
<br/><br/><label>ISBN: </label>978-0-07-060175-8  
<br/><br/><label>Dewey Class. No.: </label>621.38153