Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Foster, R. F. Modern Ireland, 1600-1972. New York: Penguin Books, 1988.

Cita MLA (9th ed.)

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