APA استشهاد

Churchill, G. A. (1983). Marketing research: Methodological foundations (3rd ed.). Dryden press.

استشهاد بنمط شيكاغو

Churchill, Gilbert A. Marketing Research: Methodological Foundations. 3rd ed. Chicago: Dryden press, 1983.

MLA استشهاد

Churchill, Gilbert A. Marketing Research: Methodological Foundations. 3rd ed. Dryden press, 1983.