Dyfyniad APA

Birmingham, W. (1966). Economics: An Introduction (2nd Revises ed.). Allen & Unwin.

Dyfyniad Arddull Chicago

Birmingham, Walter. Economics: An Introduction. 2nd Revises ed. London: Allen & Unwin, 1966.

Dyfyniad MLA

Birmingham, Walter. Economics: An Introduction. 2nd Revises ed. Allen & Unwin, 1966.

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