Verderber, Rudolph F., <br/><br/>
THE CHALLENGE OF Effective Speaking in a Digital Age / 
Rudolph F. Verderber, Deanna D. Sellnow, Kathleen S. Verderber. 
 - 17th edition. 
 - xxi, 323 pages :  color illustrations ;  28 cm 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781305948198  RM527.70 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public speaking.
<br/><br/><label>LC Class. No.: </label>PN4121   / .V47