Tonning, Wayland A. <br/><br/>
How to measure and evaluate salesmen’ s performance / 
Wayland A. Tonning. 
 - Englewood Cliffs, N. J.:   Prentice-Hall,   [1967].  
 - xiv, 239 p. :  tables ;  29 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Salesmen and salesmanship
<br/><br/><label>Dewey Class. No.: </label>658.3044