Malvino, Albert Paul & Leach, Donald P. <br/><br/>
Digital Principles And Applications 

 - 4th ed. 
 - New Delhi:  Tata McGraw-Hill Publishing Company Limited,  1991. 
 - 540p. 
<br/><br/><label>ISBN: </label>0074622318 
<br/><br/><label>Dewey Class. No.: </label>621.395 MAL/D