Não informado. (1944). Science guide. American Museum of Natural History.
Chicagoスタイル(17版)引用形式Não informado. Science Guide. New York: American Museum of Natural History, 1944.
MLA(8版)引用形式Não informado. Science Guide. American Museum of Natural History, 1944.
警告: この引用は必ずしも正確ではありません.