APA-viite (7. p.)

Zikmund, W. G. (2009). Essentials of Marketing Research. Cengage.

Chicago-viite (17. p.)

Zikmund, William G. Essentials of Marketing Research. Delhi: Cengage, 2009.

MLA-viite (9. p.)

Zikmund, William G. Essentials of Marketing Research. Cengage, 2009.