Vanderkam, L. (2010). 168 hours: You have more time than you think. Portfolio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVanderkam, Laura. 168 Hours: You Have More Time than You Think. New York: Portfolio, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVanderkam, Laura. 168 Hours: You Have More Time than You Think. Portfolio, 2010.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.