APA (7th ed.) Citation

Helpman, E., & Razin, A. (1978). A theory of international trade under uncertainty. Academic Press.

Chicago Style (17th ed.) Citation

Helpman, Elhanan, and Assaf Razin. A Theory of International Trade Under Uncertainty. New York: Academic Press, 1978.

MLA (9th ed.) Citation

Helpman, Elhanan, and Assaf Razin. A Theory of International Trade Under Uncertainty. Academic Press, 1978.