Wheeler, Elmer, <br/><br/>
Tested selling tips from around the world / 
Elmer Wheeler. 
 - United States :  Prentice Hall inc ,  1961. 
 - vii, 226 pages :  23 cm. 
<br/><br/> Includes index.  
<br/><br/><label>Dewey Class. No.: </label>910   / W57