Liebenau, Jonathan <br/><br/>
Understanding Information/ 

 - London  Macmillan Press Ltd.  1990 
 - viii,123p.:  ill.; 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0333536800 
<br/><br/><label>LC Class. No.: </label>T58.5  / .L62 1990