Dyfyniad APA

Fletcher, J. (1984). Information sources in economics (2nd ed.). Butterworths.

Dyfyniad Arddull Chicago

Fletcher, John. Information Sources in Economics. 2nd ed. London ; Boston: Butterworths, 1984.

Dyfyniad MLA

Fletcher, John. Information Sources in Economics. 2nd ed. Butterworths, 1984.

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