Παραπομπή APA

Shihata, I. F. (1983). OPEC fund for international development: The formative years. Goom Heln.

Παραπομπή Chicago Style

Shihata, Ibrahim Fl. OPEC Fund for International Development: The Formative Years. London: Goom Heln, 1983.

Παραπομπή MLA

Shihata, Ibrahim Fl. OPEC Fund for International Development: The Formative Years. Goom Heln, 1983.