Nashelsky, Louis. <br/><br/>
Introduction to digital technology /  

 - 4th ed. 
 - USA :  Prentice Hall,  c1994. 
 - x, 437 p. :  ill. ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780134977850 
<br/><br/><label>LC Class. No.: </label>23193-23197 
<br/><br/><label>Dewey Class. No.: </label>621.381958  / NAS