Hartley, Michael G. <br/><br/>
First course in computer technology   
by Michael G. Hartley and Martin Healey. 
 - London  McGraw-Hill  1978 
 - xii, 217p. 
<br/><br/><label>ISBN: </label>0070840806 
<br/><br/><label>Dewey Class. No.: </label>621.38195  / N78