Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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