APA Citation

Keylor, W. R. (1992). The Twentieth-century world: An international history (2nd ed.). New York: Oxford University Press.

Chicago Style Citation

Keylor, William R. The Twentieth-century World: An International History. 2nd ed. New York: Oxford University Press, 1992.

MLA Citation

Keylor, William R. The Twentieth-century World: An International History. 2nd ed. New York: Oxford University Press, 1992.

Warning: These citations may not always be 100% accurate.