Não informado. (1967). Ontario Geography. University of Western Ontario, Department of Geography.
Chicagoスタイル(17版)引用形式Não informado. Ontario Geography. Ontario, Canada: University of Western Ontario, Department of Geography, 1967.
MLA(8版)引用形式Não informado. Ontario Geography. University of Western Ontario, Department of Geography, 1967.
警告: この引用は必ずしも正確ではありません.