Citazione Stile APA (7a Edizione)

.Shihata, I. F. I. (1982). The other face of OPEC: Financial assistance to the Third World. Longman.

Citazione stile Chigago Style (17a edizione)

.Shihata, Ibrahim F. I. The Other Face of OPEC: Financial Assistance to the Third World. London ; New York: Longman, 1982.

Citatione MLA (9a ed.)

.Shihata, Ibrahim F. I. The Other Face of OPEC: Financial Assistance to the Third World. Longman, 1982.