Não informado. (1913). Bulletin of the Geological Survey of Southern Rhodesia. Rhodesia Geological Survey.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Geological Survey of Southern Rhodesia. Salisbury, Zimbabwe: Rhodesia Geological Survey, 1913.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Geological Survey of Southern Rhodesia. Rhodesia Geological Survey, 1913.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.