Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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