APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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