.Shihata, I. F. I. (1982). The other face of OPEC: Financial assistance to the Third World. Longman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र.Shihata, Ibrahim F. I. The Other Face of OPEC: Financial Assistance to the Third World. London ; New York: Longman, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्र.Shihata, Ibrahim F. I. The Other Face of OPEC: Financial Assistance to the Third World. Longman, 1982.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.