Cita APA (7th ed.)

Harrod, . R., & Hague, D. (1963). International trade theory in a developing world. Macmillan.

Cita Chicago (17th ed.)

Harrod, Roy, i Douglas Hague. International Trade Theory in a Developing World. London: Macmillan, 1963.

Cita MLA (9th ed.)

Harrod, Roy, i Douglas Hague. International Trade Theory in a Developing World. Macmillan, 1963.