APA引文

(1981). A stratistical review of the world industrial situation 1981. U.S.A: UNIDO.

Trích dẫn kiểu Chicago

A Stratistical Review of the World Industrial Situation 1981. U.S.A: UNIDO, 1981.

MLA引文

A Stratistical Review of the World Industrial Situation 1981. U.S.A: UNIDO, 1981.

警告：这些引文格式不一定是100％准确.