Dyfyniad APA

Kurtz, D. L., & David L. Kurtz. (2007). Contemporary Business 2007. Mason, OH: South-Western Cengage Learning.

Dyfyniad Arddull Chicago

Kurtz, David L., và David L. Kurtz. Contemporary Business 2007. Mason, OH: South-Western Cengage Learning, 2007.

Dyfyniad MLA

Kurtz, David L., và David L. Kurtz. Contemporary Business 2007. Mason, OH: South-Western Cengage Learning, 2007.

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