APA引文

(2001). Outline of U.S. government. U.S.: United states Department of States.

Trích dẫn kiểu Chicago

Outline of U.S. Government. U.S.: United states Department of States, 2001.

MLA引文

Outline of U.S. Government. U.S.: United states Department of States, 2001.

警告：這些引文格式不一定是100％准確.