Sumner, Mary. <br/><br/>
Computers :  concepts and uses. 

 - USA :  Prentice-Hall,  1985. 
 - xix, 555 p. :  ill. ;  27 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0131637185 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.
<br/><br/><label>Dewey Class. No.: </label>004 SUM