Verderber, Rudolph F. <br/><br/>
Essentials of informative speaking :  theory & contexts / 
Rudolph F. Verderber. 
 - Belmont, Calif. :  Wadsworth,  c1991. 
 - xv, 240 p. 
<br/><br/><label>ISBN: </label>0534152767 
<br/><br/><label>LCCN: </label>92026193     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public speaking.<br/>Oral communication.