The United Nations University. (1993). The Role of the United Nations in the Twenty-First Century. The United Nations University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe United Nations University. The Role of the United Nations in the Twenty-First Century. Japan: The United Nations University, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe United Nations University. The Role of the United Nations in the Twenty-First Century. The United Nations University, 1993.
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