APA (7th ed.) Citation

Killen, W. D. D. (1875). The Ecclesiastical history of Ireland. Macmillan and Co.

Chicago Style (17th ed.) Citation

Killen, William Dool D.D. The Ecclesiastical History of Ireland. London: Macmillan and Co, 1875.

MLA (9th ed.) Citation

Killen, William Dool D.D. The Ecclesiastical History of Ireland. Macmillan and Co, 1875.

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