Kennedy, P. M. (1994). Preparing for the twenty-first century (First Vintage Books edition.). Vintage Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKennedy, Paul M. Preparing for the Twenty-first Century. First Vintage Books edition. New York: Vintage Books, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKennedy, Paul M. Preparing for the Twenty-first Century. First Vintage Books edition. Vintage Books, 1994.
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