Hoernlé, R. F. A., & MacCrone, I. D. (1945). Race and reason: Being mainly a selection of contributions to the race problem in South Africa / by the late R. F. Alfred Hoernlé. Ed. with a memoir by I. D. MacCrone. Witwatersrand Univ. Press.
Chicago-referens (17:e uppl.)Hoernlé, Reinhold Frederick Alfred, och I. D. MacCrone. Race and Reason: Being Mainly a Selection of Contributions to the Race Problem in South Africa / by the Late R. F. Alfred Hoernlé. Ed. with a Memoir by I. D. MacCrone. Johannesburg: Witwatersrand Univ. Press, 1945.
MLA-referens (8:e uppl.)Hoernlé, Reinhold Frederick Alfred, och I. D. MacCrone. Race and Reason: Being Mainly a Selection of Contributions to the Race Problem in South Africa / by the Late R. F. Alfred Hoernlé. Ed. with a Memoir by I. D. MacCrone. Witwatersrand Univ. Press, 1945.