Cita APA

Lichtheim, G. 1. (1974). Europe in the twentieth century. London: Cardinal.

Citación estilo Chicago

Lichtheim, George 1912-1973. Europe in the Twentieth Century. London: Cardinal, 1974.

Cita MLA

Lichtheim, George 1912-1973. Europe in the Twentieth Century. London: Cardinal, 1974.