Não informado. (1952). Belgian Congo today. Belgium Congo and Ruanda Urundi Information and Public Relations Office.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Belgian Congo Today. Brussels: Belgium Congo and Ruanda Urundi Information and Public Relations Office, 1952.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Belgian Congo Today. Belgium Congo and Ruanda Urundi Information and Public Relations Office, 1952.
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