Hegel, G. W. F. (1980). Lectures on the philosophy of world history: Introduction: reason in History. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoHegel, Georg Wilhelm Friedrich. Lectures On the Philosophy of World History: Introduction: Reason in History. Cambridge: Cambridge University Press, 1980.
MLA引文Hegel, Georg Wilhelm Friedrich. Lectures On the Philosophy of World History: Introduction: Reason in History. Cambridge: Cambridge University Press, 1980.
警告：這些引文格式不一定是100％准確.