Não informado. (1950). Bibliographical Series. Department of Mines and Technical Surveys.
Style de citation Chicago (17e éd.)Não informado. Bibliographical Series. Ottawa: Department of Mines and Technical Surveys, 1950.
Style de citation MLA (8e éd.)Não informado. Bibliographical Series. Department of Mines and Technical Surveys, 1950.
Attention : ces citations peuvent ne pas être correctes à 100%.