Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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