Leach Donald P.  <br/><br/>
Digital principles and applications 

 - 6th edition. 
 - New delhi :   Tata Mcgraw Hill,   2009. 
 - 467.  
<br/><br/><label>ISBN: </label>978-0-07=060175-8  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering,
<br/><br/><label>Dewey Class. No.: </label>621.381  /  LE