McKeown, G. (2021). Effortless: Make it easier to do what matters most (Unabridged.). Random House Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcKeown, Greg. Effortless: Make It Easier to Do What Matters Most. Unabridged. New York: Random House Audio, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMcKeown, Greg. Effortless: Make It Easier to Do What Matters Most. Unabridged. Random House Audio, 2021.
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