Transvaal (Colony). Geological Survey & Transvaal (Colony). Mines Dept. Report of the Geological Survey for the year ... Govt. Print. and Stationery Office.
Style de citation Chicago (17e éd.)Transvaal (Colony). Geological Survey et Transvaal (Colony). Mines Dept. Report of the Geological Survey for the Year ... Pretoria: Govt. Print. and Stationery Office.
Style de citation MLA (8e éd.)Transvaal (Colony). Geological Survey et Transvaal (Colony). Mines Dept. Report of the Geological Survey for the Year ... Govt. Print. and Stationery Office.
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