APA-referens (7:e uppl.)

Zikmund, W. G. (2003). Business Research Methods (10th ed.). Tata McGraw-Hill.

Chicago-referens (17:e uppl.)

Zikmund, William G. Business Research Methods. 10th ed. New Delhi: Tata McGraw-Hill, 2003.

MLA-referens (9:e uppl.)

Zikmund, William G. Business Research Methods. 10th ed. Tata McGraw-Hill, 2003.