APA ציטוט

El-Agraa,Ali M. (1983). The theory of international trade. Croom Helm.

Chicago Edition Citation

El-Agraa,Ali M. The Theory of International Trade. London: Croom Helm, 1983.

ציטוט MLA

El-Agraa,Ali M. The Theory of International Trade. Croom Helm, 1983.