Toynbee, A. J. (1939). A study of history. United Kingdom: The Breakdowns of Civilizations.
Chicago Style CitationToynbee, Arnold J. A Study of History. United Kingdom: The Breakdowns of Civilizations, 1939.
Cita MLAToynbee, Arnold J. A Study of History. United Kingdom: The Breakdowns of Civilizations, 1939.
Atenció: Aquestes cites poden no estar 100% correctes.