Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Keirstead, Burton Seely. The Theory of Economic Change. Toronto: MacMillan, 1948.

Cita MLA (9a ed.)

Keirstead, Burton Seely. The Theory of Economic Change. MacMillan, 1948.