Llewellyn, Robert W. <br/><br/>
Information system/ 
Robert W. Llewellyn 
 - New Jersey:  Prentice-Hall,  c1976 
 - 347 p.;  21 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0134644875  $ 14.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management information systems<br/>Information resources--Mangement
<br/><br/><label>Dewey Class. No.: </label>658.403