Cita APA (7th ed.)

Young, J. W. (1997). Britain and the world in the twentieth century. Arnold.

Cita Chicago (17th ed.)

Young, John W. Britain and the World in the Twentieth Century. London: Arnold, 1997.

Cita MLA (9th ed.)

Young, John W. Britain and the World in the Twentieth Century. Arnold, 1997.