Não informado. (1950). Canadian Geographer. Canadian Association of Geographers.
Chicago-viite (17. p.)Não informado. Canadian Geographer. Ottawa: Canadian Association of Geographers, 1950.
MLA-viite (8. p.)Não informado. Canadian Geographer. Canadian Association of Geographers, 1950.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.