Sudman, Seymour <br/><br/>
Consumer panels / 
Seymour Sudman, Robert Ferber 
 - Chicago :  American Marketing Association,  1979 
 - 123 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0877571317 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Consumer panels