Dyfyniad APA

Ferrell, O., Ferrell, L., & Hirt, G. A. (2009). Business: A changing world (7th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Ferrell, O.C, Linda Ferrell, and Geoffrey A. Hirt. Business: A Changing World. 7th ed. Boston: McGraw-Hill, 2009.

Dyfyniad MLA

Ferrell, O.C, et al. Business: A Changing World. 7th ed. McGraw-Hill, 2009.

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