Pinkerton, John M M <br/><br/>
Understanding Information technology 
John M M Pinkerton 
 - London  Ellis Horwood  1990 
 - 150p. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0139468986 
<br/><br/><label>Dewey Class. No.: </label>004 PIN/UND