Παραπομπή APA

El-Agraa, A. M. (1989). Theory and measurement of international economic integration. Macmillan.

Παραπομπή Chicago Style

El-Agraa, Ali M. Theory and Measurement of International Economic Integration. London: Macmillan, 1989.

Παραπομπή MLA

El-Agraa, Ali M. Theory and Measurement of International Economic Integration. Macmillan, 1989.