Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.