The challenge of effective speaking / 
Verderber, Rudolph F. 
 - 11th ed. 
 - Singapore :  Wadsworth, Thomson Learning Asia,  2000. 
 - xxviii, 372 p.: ill.; 24.5 cm. 
<br/><br/>Includes appendix, notes, glossary, and index 
<br/><br/><label>ISBN: </label>9812403124 
<br/><br/><label>Dewey Class. No.: </label>C 808.5 Ver 2000