APA (7th ed.) Citation

O'Kelly, M. J., & O'Kelly, C. (1989). Early Ireland: An introduction to Irish prehistory. Cambridge University Press.

Chicago Style (17th ed.) Citation

O'Kelly, Michael J., and Claire O'Kelly. Early Ireland: An Introduction to Irish Prehistory. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1989.

MLA (9th ed.) Citation

O'Kelly, Michael J., and Claire O'Kelly. Early Ireland: An Introduction to Irish Prehistory. Cambridge University Press, 1989.