APA aipamena

Zikmund William G. (2014). Business Research Methods. Cengage.

Chicago Style aipamena

Zikmund William G. Business Research Methods. Australlia: Cengage, 2014.

MLA aipamena

Zikmund William G. Business Research Methods. Cengage, 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.