Não informado. (1950). Bulletin of the British Museum Natural History. British Museum of Natural History.
Chicago-Zitierstil (17. Ausg.)Não informado. Bulletin of the British Museum Natural History. London: British Museum of Natural History, 1950.
MLA-Zitierstil (8. Ausg.)Não informado. Bulletin of the British Museum Natural History. British Museum of Natural History, 1950.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.