Malvino, Albert Paul & Leach, Donald P <br/><br/>
Digital principles and applications 

 - 4th edition 
 - Tata McGraw Hill, New Delhi  1991 
 - iv, 540p 
<br/><br/><label>ISBN: </label>0-07-039883-6 
<br/><br/><label>Dewey Class. No.: </label>621.381958 Mal/Lea