APA Citatie

Helpman,Elhanan. (1978). A theory of international trade under uncertainty. Academic Press.

Chicago Style citaat

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

MLA citatie

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

Let op: Deze citaties zijn niet altijd 100% accuraat.