Dyfyniad APA

Frank, R. H. (2011). Principles of microeconomics brief edition. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Frank, Robert H. Principles of Microeconomics Brief Edition. New York: McGraw-Hill, 2011.

Dyfyniad MLA

Frank, Robert H. Principles of Microeconomics Brief Edition. New York: McGraw-Hill, 2011.

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