APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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