Barnes, H. E. (1948). Historical sociology: Its origins and development. Philosophical Library.
Citazione stile Chigago Style (17a edizione)Barnes, Harry Elmer. Historical Sociology: Its Origins and Development. New York: Philosophical Library, 1948.
Citatione MLA (9a ed.)Barnes, Harry Elmer. Historical Sociology: Its Origins and Development. Philosophical Library, 1948.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.