APA (7th ed.) Citation

Garson, H. S. (2004). Oprah Winfrey: A biography. Greenwood Press.

Chicago Style (17th ed.) Citation

Garson, Helen S. Oprah Winfrey: A Biography. Westport, Conn.: Greenwood Press, 2004.

MLA (9th ed.) Citation

Garson, Helen S. Oprah Winfrey: A Biography. Greenwood Press, 2004.