Dyfyniad APA

Koop, G. (2005). Analysis of economic data (2nd ed.). John Wiley.

Dyfyniad Arddull Chicago

Koop, Gary. Analysis of Economic Data. 2nd ed. Chichester: John Wiley, 2005.

Dyfyniad MLA

Koop, Gary. Analysis of Economic Data. 2nd ed. John Wiley, 2005.

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