Boyer, P. S. (1993). The enduring vision: A history of the American people (2nd ed.). D.C. Heath and Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBoyer, Paul S. The Enduring Vision: A History of the American People. 2nd ed. Lexington: D.C. Heath and Co., 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBoyer, Paul S. The Enduring Vision: A History of the American People. 2nd ed. D.C. Heath and Co., 1993.
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