APA引文

(1980). Metalworking machine tools. Washington: United States International Trade Commission.

Trích dẫn kiểu Chicago

Metalworking Machine Tools. Washington: United States International Trade Commission, 1980.

MLA引文

Metalworking Machine Tools. Washington: United States International Trade Commission, 1980.

警告：这些引文格式不一定是100％准确.