Cita APA (7a ed.)

Foster, R. F. (1988). Modern Ireland 1600-1972. Penguin.

Cita Chicago Style (17a ed.)

Foster, Robert Fitzrdy. Modern Ireland 1600-1972. New York: Penguin, 1988.

Cita MLA (9a ed.)

Foster, Robert Fitzrdy. Modern Ireland 1600-1972. Penguin, 1988.