Não informado. (1964). Canadian cartographer. York University, Department of Geography.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Canadian Cartographer. Toronto, Canada: York University, Department of Geography, 1964.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Canadian Cartographer. York University, Department of Geography, 1964.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.