Não informado. (1967). Ontario Geography. University of Western Ontario, Department of Geography.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Ontario Geography. Ontario, Canada: University of Western Ontario, Department of Geography, 1967.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Ontario Geography. University of Western Ontario, Department of Geography, 1967.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.