Abstract

Get full access to this article
View all access options for this article.
References
1.
Boyd
H. W.
and
Westfall
R.
Marketing Research , third edition. Homewood, Ill. : R. D. Irwin , 1972 .
2.
O'Dell
W. F.
“Personal Interviews or Mail Panels ,” Journal of Marketing , 26 (October 1962 ), 34 –9 .
