Não informado. (1951). Geographical bulletin. Department of Mines and Technical Surveys, Geographical Branch.
Cita Chicago Style (17a ed.)Não informado. Geographical Bulletin. Ottawa: Department of Mines and Technical Surveys, Geographical Branch, 1951.
Cita MLA (8a ed.)Não informado. Geographical Bulletin. Department of Mines and Technical Surveys, Geographical Branch, 1951.
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