APA (7th ed.) Citation

Helferty, S., & Refaussé, R. (2011). Directory of Irish Archives (Fifth edition.).

Chicago Style (17th ed.) Citation

Helferty, Seamus, and Raymond Refaussé. Directory of Irish Archives. Fifth edition. 2011.

MLA (9th ed.) Citation

Helferty, Seamus, and Raymond Refaussé. Directory of Irish Archives. Fifth edition. 2011.

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