Cita APA

Lichtheim, G. (1972). Europe in the twentieth century. Weidenfeld and Nicolson.

Citación estilo Chicago

Lichtheim, George. Europe in the Twentieth Century. London: Weidenfeld and Nicolson, 1972.

Cita MLA

Lichtheim, George. Europe in the Twentieth Century. Weidenfeld and Nicolson, 1972.