Cita APA (7a ed.)

Einzig, P. (1935). The future of gold. Macmillan and Co..

Cita Chicago Style (17a ed.)

Einzig, Paul. The Future of Gold. New York: Macmillan and Co., 1935.

Cita MLA (8a ed.)

Einzig, Paul. The Future of Gold. Macmillan and Co., 1935.