APA aipamena

Keirstead, B. S. (1948). The theory of economic change. Macmillan.

Chicago Style aipamena

Keirstead, B. S. The Theory of Economic Change. Toronto: Macmillan, 1948.

MLA aipamena

Keirstead, B. S. The Theory of Economic Change. Macmillan, 1948.