Dyfyniad APA

McConnell, C. R. (2008). Economics: Principles, problems, and policies. Boston: McGraw-Hill Irwin.

Dyfyniad Arddull Chicago

McConnell, Campbell R. Economics: Principles, Problems, and Policies. Boston: McGraw-Hill Irwin, 2008.

Dyfyniad MLA

McConnell, Campbell R. Economics: Principles, Problems, and Policies. Boston: McGraw-Hill Irwin, 2008.

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