Dyfyniad APA

Mankiw, N. G. (2009). Principles of economics (Fifth edition.). South-Western Cengage Learning.

Dyfyniad Arddull Chicago

Mankiw, N. Gregory. Principles of Economics. Fifth edition. Mason: South-Western Cengage Learning, 2009.

Dyfyniad MLA

Mankiw, N. Gregory. Principles of Economics. Fifth edition. South-Western Cengage Learning, 2009.

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