APA (7th ed.) Zitazioa
Zikmund, W. G., & William G. (2003). Business research methods (7th ed.). Thompson South Western.
Chicago Style (17th ed.) Zitazioa
Zikmund, William G., eta William G. Business Research Methods. 7th ed. Oklahoma State Univesity.: Thompson South Western, 2003.
MLA (9th ed.) Zitazioa
Zikmund, William G., eta William G. Business Research Methods. 7th ed. Thompson South Western, 2003.
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