Economic and Social Commission for Western Asia & Gulf Cooperation Council. (2001). Economic diversification in the oil-producing countries: The case of the Gulf Cooperation Council economies. United Nations.
Чикаго стиль цитування (17-те видання)Economic and Social Commission for Western Asia та Gulf Cooperation Council. Economic Diversification in the Oil-producing Countries: The Case of the Gulf Cooperation Council Economies. New York: United Nations, 2001.
Стиль цитування MLA (9-ме видання)Economic and Social Commission for Western Asia та Gulf Cooperation Council. Economic Diversification in the Oil-producing Countries: The Case of the Gulf Cooperation Council Economies. United Nations, 2001.