Dyfyniad APA

Wonnacott, P., & Wonnacott, R. (1990). Macroeconomics (4th ed.). John Wiley.

Dyfyniad Arddull Chicago

Wonnacott, Paul, and Ronald Wonnacott. Macroeconomics. 4th ed. New York: John Wiley, 1990.

Dyfyniad MLA

Wonnacott, Paul, and Ronald Wonnacott. Macroeconomics. 4th ed. John Wiley, 1990.

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