Não informado. (1950). Canadian Geographer. Canadian Association of Geographers.
Cita Chicago Style (17a ed.)Não informado. Canadian Geographer. Ottawa: Canadian Association of Geographers, 1950.
Cita MLA (8a ed.)Não informado. Canadian Geographer. Canadian Association of Geographers, 1950.
Precaución: Estas citas no son 100% exactas.