Boyd, Westfall. and Stasch. <br/><br/>
Marketing research; text and cases 
[by] Harper W. Boyd, Jr. [and] Ralph Westfall. 
 - 6th ed. 
 - Homewood, Ill.,  R. D. Irwin,  1972. 
 - xv, 836 p.  illus. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing research.
<br/><br/><label>Dewey Class. No.: </label>442. 03