Toynbee, A. J. (1934). A study of history. Royal Institute of International Affairs.
Trích dẫn kiểu ChicagoToynbee, Arnold J. A Study of History. Royal Institute of International Affairs, 1934.
MLA引文Toynbee, Arnold J. A Study of History. Royal Institute of International Affairs, 1934.
警告:这些引文格式不一定是100%准确.