Cita APA (7a ed.)

Robson, W. (1973). 20th-Century Britain. Oxford University Press.

Cita Chicago Style (17a ed.)

Robson, W. 20th-Century Britain. Oxford: Oxford University Press, 1973.

Cita MLA (8a ed.)

Robson, W. 20th-Century Britain. Oxford University Press, 1973.