Não informado. (1913). Bulletin of the Geological Survey of Southern Rhodesia. Rhodesia Geological Survey.
Chicago-viite (17. p.)Não informado. Bulletin of the Geological Survey of Southern Rhodesia. Salisbury, Zimbabwe: Rhodesia Geological Survey, 1913.
MLA-viite (8. p.)Não informado. Bulletin of the Geological Survey of Southern Rhodesia. Rhodesia Geological Survey, 1913.
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