Ezra, K. (1984). African ivories. Metropolitan Museum of Art.
Chicago Style (17th ed.) ZitazioaEzra, Kate. African Ivories. New York: Metropolitan Museum of Art, 1984.
MLA (9th ed.) ZitazioaEzra, Kate. African Ivories. Metropolitan Museum of Art, 1984.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.