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