Leach, Donald P. <br/><br/>
Digital  Principles And Applications 

 - 5th ed. 
 - New Delhi :  Tata McGraw-Hill Publishing Company Limited   1995 
 - x, 638 p. :  ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0070472580 
<br/><br/><label>Dewey Class. No.: </label>621.395  / L434d 1995