Bob Dignen. <br/><br/>
50 Ways to improve  your presentation Skills in English   Textual Documents 

 - [s.l]:  Orient Black swan private LTD,  2007. 
 - 145:  paper. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Dewey Class. No.: </label>428.24  / DIG