Malvino, A.P. &  Leach <br/><br/>
Digital principles & applications 

 - 4th 
 - Tat McGraw-Hill Publishig compani limited, new Delhi  1969 
 - 540 
<br/><br/><label>ISBN: </label>0-07-039883-6 
<br/><br/><label>Dewey Class. No.: </label>621.381958 Mal/Lea