Bolden, T. (2020). Strong voices: Fifteen American speeches worth knowing (First edition.). Harper.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBolden, Tonya. Strong Voices: Fifteen American Speeches Worth Knowing. First edition. New York, NY: Harper, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBolden, Tonya. Strong Voices: Fifteen American Speeches Worth Knowing. First edition. Harper, 2020.
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