Gregory, H. (1999). Public speaking for college and career (5th.ed.). McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGregory, Hamilton. Public Speaking for College and Career. 5th.ed. Boston: McGraw-Hill, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGregory, Hamilton. Public Speaking for College and Career. 5th.ed. McGraw-Hill, 1999.
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