Hofmeyr, J. H., & Hoernlé, R. F. A. (1945). Christian principles and race problem. South African Institute of Race Relations.
Citazione stile Chigago Style (17a edizione)Hofmeyr, Jan H., e Reinhold Frederick Alfred Hoernlé. Christian Principles and Race Problem. Johannesburg: South African Institute of Race Relations, 1945.
Citatione MLA (8a ed.)Hofmeyr, Jan H., e Reinhold Frederick Alfred Hoernlé. Christian Principles and Race Problem. South African Institute of Race Relations, 1945.
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