Não informado. (1956). Geographical Paper. Department of Mines and Technical Surveys, Geographical Branch.
Chicago-Zitierstil (17. Ausg.)Não informado. Geographical Paper. Ottawa: Department of Mines and Technical Surveys, Geographical Branch, 1956.
MLA-Zitierstil (8. Ausg.)Não informado. Geographical Paper. Department of Mines and Technical Surveys, Geographical Branch, 1956.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.