Hill, N., & Whittaker, J. (2020). Andrew Carnegie's mental dynamite: Unlock the awesome power of you. Sterling.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHill, Napoleon, और James Whittaker. Andrew Carnegie's Mental Dynamite: Unlock the Awesome Power of You. New York: Sterling, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHill, Napoleon, और James Whittaker. Andrew Carnegie's Mental Dynamite: Unlock the Awesome Power of You. Sterling, 2020.
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