APA aipamena

Zikmund, W. G. (2003). Business research methods (7th ed.). Thomson/South-Western.

Chicago Style aipamena

Zikmund, William G. Business Research Methods. 7th ed. Mason, OH: Thomson/South-Western, 2003.

MLA aipamena

Zikmund, William G. Business Research Methods. 7th ed. Thomson/South-Western, 2003.