Cita APA (7a ed.)

Winfrey, O. (2014). What I know for sure (First edition.). Flatiron Books.

Cita Chicago Style (17a ed.)

Winfrey, Oprah. What I Know for Sure. First edition. New York: Flatiron Books, 2014.

Cita MLA (8a ed.)

Winfrey, Oprah. What I Know for Sure. First edition. Flatiron Books, 2014.

Precaución: Estas citas no son 100% exactas.