Barnes, H. E. (1948). Historical sociology: Its origins and development. Philosophical Library.
Chicago Style aipamenaBarnes, Harry Elmer. Historical Sociology: Its Origins and Development. New York: Philosophical Library, 1948.
MLA aipamenaBarnes, Harry Elmer. Historical Sociology: Its Origins and Development. Philosophical Library, 1948.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.