APA (7e ed.) Bronvermelding

Zikmund, W. G. (2003). Business Research Methods (3rd.). Thomson Learning.

Chicago (17e ed.) Bronvermelding

Zikmund, William G. Business Research Methods. 3rd. New Delhi: Thomson Learning, 2003.

MLA (9e ed.) Bronvermelding

Zikmund, William G. Business Research Methods. 3rd. Thomson Learning, 2003.