Não informado. (1901). Guide leaflets series. American Museum of Natural History.
Chicagoスタイル(17版)引用形式Não informado. Guide Leaflets Series. New York: American Museum of Natural History, 1901.
MLA(8版)引用形式Não informado. Guide Leaflets Series. American Museum of Natural History, 1901.
警告: この引用は必ずしも正確ではありません.