APA (7e ed.) Bronvermelding

Não informado. (1951). Geographical bulletin. Department of Mines and Technical Surveys, Geographical Branch.

Chicago (17e ed.) Bronvermelding

Não informado. Geographical Bulletin. Ottawa: Department of Mines and Technical Surveys, Geographical Branch, 1951.

MLA (8e ed.) Bronvermelding

Não informado. Geographical Bulletin. Department of Mines and Technical Surveys, Geographical Branch, 1951.

Let op: Deze citaties zijn niet altijd 100% accuraat.