APA引文

(1967). Issues and objectives of U. S. foreign trade polocy. Washington.

Trích dẫn kiểu Chicago

Issues and Objectives of U. S. Foreign Trade Polocy. Washington, 1967.

MLA引文

Issues and Objectives of U. S. Foreign Trade Polocy. Washington, 1967.

警告：这些引文格式不一定是100％准确.