Marks, Ronald B.,  1944- <br/><br/>
Personal selling :  a relationship approach / 
Ronald B. Marks. 
 - 6th ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  c1997. 
 - xix, 587 p. :  ill. (some col.). ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0132428849 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Selling.<br/>Selling--Psychological aspects.<br/>Selling--Vocational guidance.