Toynbee Arnold Joseph & Caplan, J. (1972). A study of history (New edition.). Oxford University Press.
Chicago Style (17th ed.) ZitazioaToynbee Arnold Joseph eta Jane Caplan. A Study of History. New edition. London: Oxford University Press, 1972.
MLA (9th ed.) ZitazioaToynbee Arnold Joseph eta Jane Caplan. A Study of History. New edition. Oxford University Press, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.