Keylor, W. R. (1984). The twentieth-century world: An international history.
Chicago Edition CitationKeylor, William R. The Twentieth-century World: An International History. New York, Oxford university press, 1984.
MLA Edition CitationKeylor, William R. The Twentieth-century World: An International History. 1984.
Warning: These citations may not always be 100% accurate.