एपीए उद्धरण

Schell, J. (2001). The unfinished twentieth century.

शिकागो स्टाइल उद्धरण

Schell, Jonathan. The Unfinished Twentieth Century. London, Verso, 2001.

एमएलए उद्धरण

Schell, Jonathan. The Unfinished Twentieth Century. 2001.