United Nations. Dept. of Public Information. (1990). The world economy: A global challenge. United Nations Dept. of Public Information.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Dept. of Public Information. The World Economy: A Global Challenge. New York: United Nations Dept. of Public Information, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Dept. of Public Information. The World Economy: A Global Challenge. United Nations Dept. of Public Information, 1990.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.