Não informado. (2003). Earth Sciences History. History of the Earth Sciences Society.
Chicagoスタイル(17版)引用形式Não informado. Earth Sciences History. Troy, NY: History of the Earth Sciences Society, 2003.
MLA(8版)引用形式Não informado. Earth Sciences History. History of the Earth Sciences Society, 2003.
警告: この引用は必ずしも正確ではありません.