Cita APA (7a ed.)

Grubel, H. G. (1969). The International Monetary System: Efficiency and practical alternatives. Penguin Books.

Cita Chicago Style (17a ed.)

Grubel, Herbert G. The International Monetary System: Efficiency and Practical Alternatives. Harmondsworth [etc.]: Penguin Books, 1969.

Cita MLA (9a ed.)

Grubel, Herbert G. The International Monetary System: Efficiency and Practical Alternatives. Penguin Books, 1969.