APA ציטוט

Helpman, E. (1978). A Theory of International Trade Under Uncertainty. ELSEVIER.

Chicago Style (17th ed.) Citation

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

ציטוט MLA

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