एपीए उद्धरण

Lietheim, G. (1972). Europe in the Twentieth Century. Weidenfeld.

शिकागो स्टाइल उद्धरण

Lietheim, George. Europe in the Twentieth Century. London: Weidenfeld, 1972.

एमएलए उद्धरण

Lietheim, George. Europe in the Twentieth Century. Weidenfeld, 1972.