Winfrey, L. P. (1980). The unforgettable elephant. Walker and Company.
Chicago Style (17th ed.) ZitazioaWinfrey, Laurie Platt. The Unforgettable Elephant. New York: Walker and Company, 1980.
MLA (9th ed.) ZitazioaWinfrey, Laurie Platt. The Unforgettable Elephant. Walker and Company, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.