United Nations. Dept. of Public Information. (1990). The world economy: A global challenge. United Nations Dept. of Public Information.
Chicago Style (17. basım) AtıfUnited Nations. Dept. of Public Information. The World Economy: A Global Challenge. New York: United Nations Dept. of Public Information, 1990.
MLA (9th ed.) AtıfUnited Nations. Dept. of Public Information. The World Economy: A Global Challenge. United Nations Dept. of Public Information, 1990.
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