Dyfyniad APA

Mankiw, N. G. (2002). Principles of economics (2 edition.). Thomson-South Western.

Dyfyniad Arddull Chicago

Mankiw, N Gregory. Principles of Economics. 2 edition. Australia: Thomson-South Western, 2002.

Dyfyniad MLA

Mankiw, N Gregory. Principles of Economics. 2 edition. Thomson-South Western, 2002.

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