APA引文

Hufbauer, G. C. (1986). Trade protection in the United States: 31 case studies. Washington: Institute for International Economics.

Trích dẫn kiểu Chicago

Hufbauer, Gary Clyde. Trade Protection in the United States: 31 Case Studies. Washington: Institute for International Economics, 1986.

MLA引文

Hufbauer, Gary Clyde. Trade Protection in the United States: 31 Case Studies. Washington: Institute for International Economics, 1986.

警告：这些引文格式不一定是100％准确.