APA (7th ed.) Citation

O'Reilly, E., & O'Donovan, J. (1864). An Irish-English Dictionary (New ed.). James Duffy.

Chicago Style (17th ed.) Citation

O'Reilly, Edward, and John O'Donovan. An Irish-English Dictionary. New ed. Dublin: James Duffy, 1864.

MLA (9th ed.) Citation

O'Reilly, Edward, and John O'Donovan. An Irish-English Dictionary. New ed. James Duffy, 1864.

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