APA
Winfrey O., . (2000). O. New York, NY: Hearst Communications.
Chicago
Winfrey Oprah, . 2000. O. New York, NY: Hearst Communications.
Harvard
Winfrey O., . (2000). O. New York, NY: Hearst Communications.
MLA
Winfrey Oprah, . O. New York, NY: Hearst Communications. 2000.