Verderber, Rudolph F <br/><br/>
Challenge of effective speaking.   

 - 2nd ed. 
 - California  Wadsworth Publishing Co.  1973 
 - 288 p. illus. 
 -   .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>808.5  / V483