Não informado. (1951). Fossil mammals of Africa. British Museum of Natural History.
Chicagoスタイル(17版)引用形式Não informado. Fossil Mammals of Africa. London: British Museum of Natural History, 1951.
MLA(8版)引用形式Não informado. Fossil Mammals of Africa. British Museum of Natural History, 1951.
警告: この引用は必ずしも正確ではありません.