Downton, A.C. <br/><br/>
Computers and microprocessors 
/ A.C.Downton 
 - 3rd ed. 
 - London  Chapman & Hall  1992 
 - xii, 240 p. 
<br/><br/>  Includes index. 
<br/><br/><label>ISBN: </label>412403005 
<br/><br/><label>Dewey Class. No.: </label>004.165  / DOW