APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.