Dyfyniad APA

Mankiw, N. G. (2012). Principles of economics (6th edition.). South-Western Cengage Learning.

Dyfyniad Arddull Chicago

Mankiw, N. Gregory. Principles of Economics. 6th edition. Mason, OH: South-Western Cengage Learning, 2012.

Dyfyniad MLA

Mankiw, N. Gregory. Principles of Economics. 6th edition. South-Western Cengage Learning, 2012.

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