Ehrenborg, Jons. <br/><br/>
Powerful Persentations : 50 Original Ideas For Making 

 -  Kogan Page  1993 
 - 117 P. : ILL. 21 CM. 
<br/><br/><label>ISBN: </label>749411643 
<br/><br/><label>Dewey Class. No.: </label>808.51 EHR 1993.