Não informado. (1950). Colonial Geology and Mineral Resources. Colonial Geological Survey.
Chicagoスタイル(17版)引用形式Não informado. Colonial Geology and Mineral Resources. London: Colonial Geological Survey, 1950.
MLA(8版)引用形式Não informado. Colonial Geology and Mineral Resources. Colonial Geological Survey, 1950.
警告: この引用は必ずしも正確ではありません.