Não informado. (1956). Geographical Paper. Department of Mines and Technical Surveys, Geographical Branch.
Chicagoスタイル(17版)引用形式Não informado. Geographical Paper. Ottawa: Department of Mines and Technical Surveys, Geographical Branch, 1956.
MLA(8版)引用形式Não informado. Geographical Paper. Department of Mines and Technical Surveys, Geographical Branch, 1956.
警告: この引用は必ずしも正確ではありません.