Não informado. (1913). Bulletin of the Geological Survey of Southern Rhodesia. Rhodesia Geological Survey.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Geological Survey of Southern Rhodesia. Salisbury, Zimbabwe: Rhodesia Geological Survey, 1913.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Geological Survey of Southern Rhodesia. Rhodesia Geological Survey, 1913.
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