Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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