APA (7th ed.) Citation

O'Sullivan, W. (1961). The earliest Irish coinage. Stat. Off.

Chicago Style (17th ed.) Citation

O'Sullivan, William. The Earliest Irish Coinage. Dublin: Stat. Off, 1961.

MLA (9th ed.) Citation

O'Sullivan, William. The Earliest Irish Coinage. Stat. Off, 1961.

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