APA (7th ed.) Zitazioa

William G Zikmund. (2013). Business Research Methods.: 9th ed (9th ed.). Cenage.

Chicago Style (17th ed.) Zitazioa

William G Zikmund. Business Research Methods.: 9th Ed. 9th ed. United States: Cenage, 2013.

MLA (9th ed.) Zitazioa

William G Zikmund. Business Research Methods.: 9th Ed. 9th ed. Cenage, 2013.