Computer Literacy and Information Technology 

 - 2 
 - London  Heinemann Education Publishers  1988 
 - 96p.:  ill.; 
<br/><br/>includes index 
<br/><br/><label>ISBN: </label>0435451871 
<br/><br/><label>LC Class. No.: </label>QA769  / .C64.R81 1988