APA引文

Kirn, E. (1989). About the U.S.A. Washington, D.C: United States Department of State.

Trích dẫn kiểu Chicago

Kirn, Elaine. About the U.S.A. Washington, D.C: United States Department of State, 1989.

MLA引文

Kirn, Elaine. About the U.S.A. Washington, D.C: United States Department of State, 1989.

警告：這些引文格式不一定是100％准確.