Não informado. World cartography. United Nations, Department of Social Affairs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. World Cartography. New York: United Nations, Department of Social Affairs.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. World Cartography. United Nations, Department of Social Affairs.
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