Não informado. (1950). Colonial Geology and Mineral Resources. Colonial Geological Survey.
Style de citation Chicago (17e éd.)Não informado. Colonial Geology and Mineral Resources. London: Colonial Geological Survey, 1950.
Style de citation MLA (8e éd.)Não informado. Colonial Geology and Mineral Resources. Colonial Geological Survey, 1950.
Attention : ces citations peuvent ne pas être correctes à 100%.