Não informado. (1939). Geological survey paper: Mines and geology branch. Department of Mines and Technical Surveys, Geological Survey.
Citace podle Chicago (17th ed.)Não informado. Geological Survey Paper: Mines and Geology Branch. Ottawa: Department of Mines and Technical Surveys, Geological Survey, 1939.
Citace podle MLA (8th ed.)Não informado. Geological Survey Paper: Mines and Geology Branch. Department of Mines and Technical Surveys, Geological Survey, 1939.
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