APA引用形式

Keylor, W. R. (2001). The twentieth century world: An international history (Ed.4.). Oxford.

シカゴスタイル引用形

Keylor, William R. The Twentieth Century World: An International History. Ed.4. New York: Oxford, 2001.

MLA引用形式

Keylor, William R. The Twentieth Century World: An International History. Ed.4. Oxford, 2001.