Dyfyniad APA

Pride, W. M., & Ferrell, O. C. (1989). Marketing cases (4th ed.). Hougton Mifflin.

Dyfyniad Arddull Chicago

Pride, William M., and O. C. Ferrell. Marketing Cases. 4th ed. Dallas Geneva, Illinois: Hougton Mifflin, 1989.

Dyfyniad MLA

Pride, William M., and O. C. Ferrell. Marketing Cases. 4th ed. Hougton Mifflin, 1989.

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