Williamson, T. (1996). Knowing and asserting. Duke University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliamson, T. Knowing and Asserting. Duke University Press, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWilliamson, T. Knowing and Asserting. Duke University Press, 1996.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.