Botha, C. G. (1916). "Some early exploring expeditions and travels in South Africa": A lecture delivered on the 31st March, 1916, at the quarterly meeting of the Mountain club. [Cape Times Ltd.].
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Botha, C. Graham. "Some Early Exploring Expeditions and Travels in South Africa": A Lecture Delivered on the 31st March, 1916, at the Quarterly Meeting of the Mountain Club. [Cape Town]: [Cape Times Ltd.], 1916.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Botha, C. Graham. "Some Early Exploring Expeditions and Travels in South Africa": A Lecture Delivered on the 31st March, 1916, at the Quarterly Meeting of the Mountain Club. [Cape Times Ltd.], 1916.
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