Não informado. (1881). Bulletin of the American Museum of Natural History. American Museum of Natural History.
Chicago-Zitierstil (17. Ausg.)Não informado. Bulletin of the American Museum of Natural History. New York: American Museum of Natural History, 1881.
MLA-Zitierstil (8. Ausg.)Não informado. Bulletin of the American Museum of Natural History. American Museum of Natural History, 1881.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.