OLIVER, Lawrence J. W. E. B. Du Bois, Berlin, and the “Dismal Science” during the Progressive Era. American Studies, [S. l.], v. 53, n. 2, p. 49–70, 2018. Disponível em: https://journals.ku.edu/amsj/article/view/4331.. Acesso em: 3 jul. 2024.