APA引文

William L Langer. (1952). An encyclopedia of world history. Boston, Massachusetts: Houghton Mifflin.

Trích dẫn kiểu Chicago

William L Langer. An Encyclopedia of World History. Boston, Massachusetts: Houghton Mifflin, 1952.

MLA引文

William L Langer. An Encyclopedia of World History. Boston, Massachusetts: Houghton Mifflin, 1952.

警告：这些引文格式不一定是100％准确.