Não informado. (1920). Danish foreign office journal. Ministry of Foreign Affairs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Danish Foreign Office Journal. Copenhagen: Ministry of Foreign Affairs, 1920.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Danish Foreign Office Journal. Ministry of Foreign Affairs, 1920.
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