Osborn, H. F. (1942). Proboscidea: A monograph of the discovery, evolution, migration and extinction of the mastodonts and elephants of the world. Ed. by Mabel Rice Percy. American Museum of Natural History.
Chicago-Zitierstil (17. Ausg.)Osborn, Henry Fairfield. Proboscidea: A Monograph of the Discovery, Evolution, Migration and Extinction of the Mastodonts and Elephants of the World. Ed. by Mabel Rice Percy. New York: American Museum of Natural History, 1942.
MLA-Zitierstil (9. Ausg.)Osborn, Henry Fairfield. Proboscidea: A Monograph of the Discovery, Evolution, Migration and Extinction of the Mastodonts and Elephants of the World. Ed. by Mabel Rice Percy. American Museum of Natural History, 1942.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.