APA引文

(1990). The economic effects of significant U.S. import restraints, phase II: Agricultural products and natural resources. Washington,D.C: United States International Trade Commission.

Trích dẫn kiểu Chicago

The Economic Effects of Significant U.S. Import Restraints, Phase II: Agricultural Products and Natural Resources. Washington,D.C: United States International Trade Commission, 1990.

MLA引文

The Economic Effects of Significant U.S. Import Restraints, Phase II: Agricultural Products and Natural Resources. Washington,D.C: United States International Trade Commission, 1990.

警告：这些引文格式不一定是100％准确.