APA引文

Droege, G. (1972). German Economic and Social History. Verlag Ullstein.

Chicago Edition Citation

Droege, Georg. German Economic and Social History. Frankfurt: Verlag Ullstein, 1972.

MLA引文

Droege, Georg. German Economic and Social History. Verlag Ullstein, 1972.

警告：這些引文格式不一定是100％准確.