Não informado. (1950). Bibliographical Series. Department of Mines and Technical Surveys.
Chicagoスタイル(17版)引用形式Não informado. Bibliographical Series. Ottawa: Department of Mines and Technical Surveys, 1950.
MLA(8版)引用形式Não informado. Bibliographical Series. Department of Mines and Technical Surveys, 1950.
警告: この引用は必ずしも正確ではありません.