The Century Foundation/Twentieth Century Fund. (1998). Foreign Affairs. The Century Foundation/Twentieth Century Fund.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Century Foundation/Twentieth Century Fund. Foreign Affairs. New York: The Century Foundation/Twentieth Century Fund, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Century Foundation/Twentieth Century Fund. Foreign Affairs. The Century Foundation/Twentieth Century Fund, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.