APA (7th ed.) Citation

Furlong, N. (2006). Diarmait, King of Leinster. Mercier Press.

Chicago Style (17th ed.) Citation

Furlong, Nicholas. Diarmait, King of Leinster. Douglas Village, Cork: Mercier Press, 2006.

MLA (9th ed.) Citation

Furlong, Nicholas. Diarmait, King of Leinster. Mercier Press, 2006.

Warning: These citations may not always be 100% accurate.