APA引文

Boller, P. F., & Story, R. (1996). A more perfect Union: Documents in U.S. history (4th ed.). Boston: Houghton Mifflin Co..

Trích dẫn kiểu Chicago

Boller, Paul F., và Ronald Story. A More Perfect Union: Documents in U.S. History. 4th ed. Boston: Houghton Mifflin Co., 1996.

MLA引文

Boller, Paul F., và Ronald Story. A More Perfect Union: Documents in U.S. History. 4th ed. Boston: Houghton Mifflin Co., 1996.

警告：這些引文格式不一定是100％准確.