Digital electronics :  An introduction to theory and practice/ 
by William H. Gothmann 
 - 2nd 
 - New Delhi :  Prentice-hall,  1996 
 - xiv, 383p.; ill. 
<br/><br/><label>ISBN: </label>81-203-0348-2 
<br/><br/><label>Dewey Class. No.: </label>621.381  / G684