APA-viite

Kregel, J. A. (1972). The theory of economic growth. Mac Millan Press.

Chicago-tyylinen lähdeviittaus

Kregel, J. A. The Theory of Economic Growth. London: Mac Millan Press, 1972.

MLA-viite

Kregel, J. A. The Theory of Economic Growth. Mac Millan Press, 1972.