APA Citatie

Aaker, D. A., Day, G. S., & Kumar, V. (2001). Marketing research (7th ed.). New York: Wiley.

Chicago Style citaat

Aaker, David A., George S. Day, en V. Kumar. Marketing Research. 7th ed. New York: Wiley, 2001.

MLA citatie

Aaker, David A., George S. Day, en V. Kumar. Marketing Research. 7th ed. New York: Wiley, 2001.