APA-referens (7:e uppl.)

Kotler, P., Armstrong, G., McCaskey, P., & Brooks, J. R. (2008). Principles of marketing: Test item file (12th ed.). Pearson/Prentice-Hall.

Chicago-referens (17:e uppl.)

Kotler, Philip, Gary Armstrong, Patrick McCaskey, och John R. Brooks. Principles of Marketing: Test Item File. 12th ed. Upper Saddle River, N.J: Pearson/Prentice-Hall, 2008.

MLA-referens (9:e uppl.)

Kotler, Philip, et al. Principles of Marketing: Test Item File. 12th ed. Pearson/Prentice-Hall, 2008.