Knowles, M. J. (2021). Speechless: Controlling words, controlling minds. Regnery Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKnowles, Michael J. Speechless: Controlling Words, Controlling Minds. Washington, D.C.: Regnery Publishing, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKnowles, Michael J. Speechless: Controlling Words, Controlling Minds. Regnery Publishing, 2021.
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