Não informado. (1964). Canadian cartographer. York University, Department of Geography.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Canadian Cartographer. Toronto, Canada: York University, Department of Geography, 1964.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Canadian Cartographer. York University, Department of Geography, 1964.
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