Não informado. (1951). Geographical bulletin. Department of Mines and Technical Surveys, Geographical Branch.
Chicagoスタイル(17版)引用形式Não informado. Geographical Bulletin. Ottawa: Department of Mines and Technical Surveys, Geographical Branch, 1951.
MLA(8版)引用形式Não informado. Geographical Bulletin. Department of Mines and Technical Surveys, Geographical Branch, 1951.
警告: この引用は必ずしも正確ではありません.