Não informado. (2018). Annual Report of the Department of Mines and Technical Surveys. Department of Mines and Technical Surveys.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Annual Report of the Department of Mines and Technical Surveys. Ottawa: Department of Mines and Technical Surveys, 2018.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Annual Report of the Department of Mines and Technical Surveys. Department of Mines and Technical Surveys, 2018.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.