APA aipamena

Toynbee, A. J. (1954). A study of history. London: Royal Institute of International Affairs.

Chicago Style aipamena

Toynbee, Arnold J. A Study of History. London: Royal Institute of International Affairs, 1954.

MLA aipamena

Toynbee, Arnold J. A Study of History. London: Royal Institute of International Affairs, 1954.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.