APA (7th ed.) Citation

Du Bois, W. E. B. (1973). Black folk: then and now: An essay in the history and sociology of the Negro race. Octagon Books.

Chicago Style (17th ed.) Citation

Du Bois, W. E. B. Black Folk: Then and Now: An Essay in the History and Sociology of the Negro Race. New York: Octagon Books, 1973.

MLA (9th ed.) Citation

Du Bois, W. E. B. Black Folk: Then and Now: An Essay in the History and Sociology of the Negro Race. Octagon Books, 1973.