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- [2] Intelligence of Northern Negroes and Southern Whites in the First World War ANTHROPOLOGIE, 1948, 52 (01): : 141 - 142
- [5] THE RELATION OF THE WHITES TO THE NEGROES ANNALS OF THE AMERICAN ACADEMY OF POLITICAL AND SOCIAL SCIENCE, 1901, 18 : 105 - 118
- [9] INTELLIGENCE OF NORTHERN NEGROES AND SOUTHERN WHITES IN THE 1ST WORLD WAR AMERICAN JOURNAL OF PSYCHOLOGY, 1945, 58 (02): : 161 - 188