//-->
The Negro in the South, his economic progress in relation to his moral and religious development : being the William Levi Bull lectures for the year 1907
Washington, Booker T., (1907)
The education of black people : ten critiques 1906 - 1960
Du Bois, William E. B., (1973)
The sociology of race : the contributions of W. E. B. Du Bois
Nkomo, Stella M., (2009)