Dyfyniad APA

Nicholson, W. (2007). Principles of microeconomics. Mason, OH: Thomson South-Western.

Dyfyniad Arddull Chicago

Nicholson, Walter. Principles of Microeconomics. Mason, OH: Thomson South-Western, 2007.

Dyfyniad MLA

Nicholson, Walter. Principles of Microeconomics. Mason, OH: Thomson South-Western, 2007.

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