Dyfyniad APA

McConnell, C. R., & Brue, S. L. (2005). Economics: Principles, problems, and policies (16th ed.). Boston: McGraw-Hill/Irwin.

Dyfyniad Arddull Chicago

McConnell, Campbell R., và Stanley L. Brue. Economics: Principles, Problems, and Policies. 16th ed. Boston: McGraw-Hill/Irwin, 2005.

Dyfyniad MLA

McConnell, Campbell R., và Stanley L. Brue. Economics: Principles, Problems, and Policies. 16th ed. Boston: McGraw-Hill/Irwin, 2005.

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