Allen, Robert Y.,  1938- <br/><br/>
Selling dynamics / 
Robert Y. Allen, Robert F. Spohn, I. Herbert Wilson. 
 - New York :  McGraw-Hill,  c1984. 
 - xx, 487 p. :  ill. 
 - McGraw-Hill series in marketing. .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0070011613 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Selling.