Dyfyniad APA

WONNACOTT, P. (1990). Economic Paul Wonnacott, Ronald Wonnacott. John Wiley & Sons.

Dyfyniad Arddull Chicago

WONNACOTT, Paul. Economic Paul Wonnacott, Ronald Wonnacott. John Wiley & Sons, 1990.

Dyfyniad MLA

WONNACOTT, Paul. Economic Paul Wonnacott, Ronald Wonnacott. John Wiley & Sons, 1990.

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