Cita APA (7th ed.)

Harrod, R. F., & Hague, D. (1964). International trade theory in a developing world. Macmillan.

Cita Chicago (17th ed.)

Harrod, Roy F., i Douglas Hague. International Trade Theory in a Developing World. Londres: Macmillan, 1964.

Cita MLA (9th ed.)

Harrod, Roy F., i Douglas Hague. International Trade Theory in a Developing World. Macmillan, 1964.