APA引文

René Sandretto. (1989). Le commerce international. Paris: Armand Colin.

Trích dẫn kiểu Chicago

René Sandretto. Le Commerce International. Paris: Armand Colin, 1989.

MLA引文

René Sandretto. Le Commerce International. Paris: Armand Colin, 1989.

警告：這些引文格式不一定是100％准確.