Ryan, H. R. (1995). U.S. presidents as orators: A bio-critical sourcebook. Greenwood Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRyan, Halford Ross. U.S. Presidents as Orators: A Bio-critical Sourcebook. Westport, Conn: Greenwood Press, 1995.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRyan, Halford Ross. U.S. Presidents as Orators: A Bio-critical Sourcebook. Greenwood Press, 1995.
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