Praagh, ed. (1906). «Boksburg». The Transvaal and its mines: the encyclopedic history of the Transvaal. London: Praagh & Lloyd. pp. 371-380. WikidataQ128058114.
Praagh, ed. (1906). «Boksburg». The Transvaal and its mines: the encyclopedic history of the Transvaal. London: Praagh & Lloyd. pp. 371-380. WikidataQ128058114.