Não informado. (2018). Annual Report of the Department of Mines and Technical Surveys. Department of Mines and Technical Surveys.
Chicago-referens (17:e uppl.)Não informado. Annual Report of the Department of Mines and Technical Surveys. Ottawa: Department of Mines and Technical Surveys, 2018.
MLA-referens (8:e uppl.)Não informado. Annual Report of the Department of Mines and Technical Surveys. Department of Mines and Technical Surveys, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.