Hart, Andrew. <br/><br/>
Understanding the media :  a practical guide / 
Andrew Hart. 
 - London :  Routledge,  1991. 
 - [272]s. :  il. ;  24cm. 
<br/><br/><label>ISBN: </label>0415057124: 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media.