Winfrey, O. (2014). What I Know For Sure. Macmillan.
Chicago Style (17th ed.) CitationWinfrey, Oprah. What I Know For Sure. UK: Macmillan, 2014.
MLA (9th ed.) CitationWinfrey, Oprah. What I Know For Sure. Macmillan, 2014.
Warning: These citations may not always be 100% accurate.