APA引文

Stevenson, D. K. (1998). American life and institutions. Washington, D.C: United States Department of State.

Trích dẫn kiểu Chicago

Stevenson, Douglas K. American Life and Institutions. Washington, D.C: United States Department of State, 1998.

MLA引文

Stevenson, Douglas K. American Life and Institutions. Washington, D.C: United States Department of State, 1998.

警告：這些引文格式不一定是100％准確.