Give great presentations :  how to speak confidently and make your point ; 
A&C Black Publishers Ltd.  
 - 90 p. :  18 cm. 
<br/><br/> include bibliographical references (pages 89-90). 
<br/><br/><label>ISBN: </label>9781529701180 
<br/><br/><label>LCCN: </label>2019943754