Vanderkam, L. (2018). Off the clock: Feel less busy while getting more done. Portfolio/Penguin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVanderkam, Laura. Off the Clock: Feel Less Busy While Getting More Done. New York: Portfolio/Penguin, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVanderkam, Laura. Off the Clock: Feel Less Busy While Getting More Done. Portfolio/Penguin, 2018.
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