Não informado. (1939). Geological survey paper: Mines and geology branch. Department of Mines and Technical Surveys, Geological Survey.
Style de citation Chicago (17e éd.)Não informado. Geological Survey Paper: Mines and Geology Branch. Ottawa: Department of Mines and Technical Surveys, Geological Survey, 1939.
Style de citation MLA (8e éd.)Não informado. Geological Survey Paper: Mines and Geology Branch. Department of Mines and Technical Surveys, Geological Survey, 1939.
Attention : ces citations peuvent ne pas être correctes à 100%.