Casler, Carlton C <br/><br/>
Presentation excellence  25 tricks tips and techniques for professional speakers and trainers 

 -   Rupa & Co. 
<br/><br/> Rupa 
<br/><br/><label>ISBN: </label>9 788 129 117 373 
<br/><br/><label>Dewey Class. No.: </label>658.452 CAS