एपीए उद्धरण

Keylor, W. R. (2006). The twentieth century world and beyond: An international history since 1900 (Ed.5.). Oxford.

शिकागो स्टाइल उद्धरण

Keylor, William R. The Twentieth Century World and Beyond: An International History Since 1900. Ed.5. New York: Oxford, 2006.

एमएलए उद्धरण

Keylor, William R. The Twentieth Century World and Beyond: An International History Since 1900. Ed.5. Oxford, 2006.