Columbia subject headings:
African Americans--Civil rights--History--19th century.
African Americans--Civil rights--History--20th century.
African Americans--Social conditions--19th century.
African Americans--Social conditions--20th century.
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963--Political and social views.
United States--Race relations.
Harvard subject headings:
African Americans--Civil rights--History--19th century
African Americans--Civil rights--History--20th century
African Americans--Social conditions--19th century.
African Americans--Social conditions--20th century.
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963--Political and social views.
United States--Race relations
Princeton subject headings:
African Americans--Civil rights--History--19th century.
African Americans--Civil rights--History--20th century.
African Americans--Social conditions--19th century.
African Americans--Social conditions--20th century.
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963--Political and social views.
United States--Race relations.