Não informado. (1935). Drama of the skies. American Museum of Natural History, Hayden Planetarium.
Chicagoスタイル(17版)引用形式Não informado. Drama of the Skies. New York: American Museum of Natural History, Hayden Planetarium, 1935.
MLA(8版)引用形式Não informado. Drama of the Skies. American Museum of Natural History, Hayden Planetarium, 1935.
警告: この引用は必ずしも正確ではありません.