Winfrey, O. (2015). What I know for sure (Large print edition.). Thorndike Press, a part of Gale, Cengage Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWinfrey, Oprah. What I Know for Sure. Large print edition. Farmington Hills, Mich.: Thorndike Press, a part of Gale, Cengage Learning, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWinfrey, Oprah. What I Know for Sure. Large print edition. Thorndike Press, a part of Gale, Cengage Learning, 2015.
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