Dyfyniad APA

creedy, j., Evans, L., & Thomas, B. (1984). Economics: An integrated approach. Prentice-hall international.

Dyfyniad Arddull Chicago

creedy, john, Lynne Evans, and Barry Thomas. Economics: An Integrated Approach. London: Prentice-hall international, 1984.

Dyfyniad MLA

creedy, john, et al. Economics: An Integrated Approach. Prentice-hall international, 1984.

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