Winfrey, O. (2014). What I know for sure (First edition.). Flatiron Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWinfrey, Oprah. What I Know for Sure. First edition. New York: Flatiron Books, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWinfrey, Oprah. What I Know for Sure. First edition. Flatiron Books, 2014.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.