Cita APA (7a ed.)

Foster, R. F. (1989). Modern Ireland, 1600-1972. Penguin.

Cita Chicago Style (17a ed.)

Foster, R. F. Modern Ireland, 1600-1972. London: Penguin, 1989.

Cita MLA (9a ed.)

Foster, R. F. Modern Ireland, 1600-1972. Penguin, 1989.