APA (7th ed.) Citation

Connolly, S. J. (2011). The Oxford companion to Irish history (2nd ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Connolly, Sean J. The Oxford Companion to Irish History. 2nd ed. Oxford ; New York: Oxford University Press, 2011.

MLA (9th ed.) Citation

Connolly, Sean J. The Oxford Companion to Irish History. 2nd ed. Oxford University Press, 2011.