The development of Central Africa: A tour to the great copper belt of Katanga, the mines, railways and work of the Tanganyika Concessions, Limited. The Times Office.
Παραπομπή σε μορφή Chicago (17η εκδ.)The Development of Central Africa: A Tour to the Great Copper Belt of Katanga, the Mines, Railways and Work of the Tanganyika Concessions, Limited. London: The Times Office.
Παραπομπή σε μορφή MLA (8th εκδ.)The Development of Central Africa: A Tour to the Great Copper Belt of Katanga, the Mines, Railways and Work of the Tanganyika Concessions, Limited. The Times Office.
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