Eck, H. J. v. (1951). Some aspects of the South Arica industrial revolution: By H. J. van Eck. South African Institute of Race Relations.
Chicago-referens (17:e uppl.)Eck, H. J. van. Some Aspects of the South Arica Industrial Revolution: By H. J. Van Eck. Johannesburg: South African Institute of Race Relations, 1951.
MLA-referens (8:e uppl.)Eck, H. J. van. Some Aspects of the South Arica Industrial Revolution: By H. J. Van Eck. South African Institute of Race Relations, 1951.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.