Não informado. (1972). Geos. Department of Energy, Mines and Resources.
Chicago Style (17th ed.) CitationNão informado. Geos. Ottawa: Department of Energy, Mines and Resources, 1972.
MLA (8th ed.) CitationNão informado. Geos. Department of Energy, Mines and Resources, 1972.
Warning: These citations may not always be 100% accurate.