Cita APA (7a ed.)

Kelly, C. (2006). The Roman Empire: A very short introduction. Oxford University Press.

Cita Chicago Style (17a ed.)

Kelly, Christopher. The Roman Empire: A Very Short Introduction. Oxford; New York: Oxford University Press, 2006.

Cita MLA (8a ed.)

Kelly, Christopher. The Roman Empire: A Very Short Introduction. Oxford University Press, 2006.