APA引文

Umbricht, V. H. (1969). Business policy in the development countries. [ New York ].

Trích dẫn kiểu Chicago

Umbricht, Victor H. Business Policy in the Development Countries. [ New York ], 1969.

MLA引文

Umbricht, Victor H. Business Policy in the Development Countries. [ New York ], 1969.

警告：這些引文格式不一定是100％准確.