Eck, H. J. v. (1951). Some aspects of the South Arica industrial revolution: By H. J. van Eck. South African Institute of Race Relations.
Citace podle Chicago (17th ed.)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.
Citace podle MLA (8th ed.)Eck, H. J. van. Some Aspects of the South Arica Industrial Revolution: By H. J. Van Eck. South African Institute of Race Relations, 1951.
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