APA (7th ed.) Citation

Great Britain. Ordnance Survey. (1903). Ordnance Survey of Ireland.

Chicago Style (17th ed.) Citation

Great Britain. Ordnance Survey. Ordnance Survey of Ireland. Dublin, 1903.

MLA (8th ed.) Citation

Great Britain. Ordnance Survey. Ordnance Survey of Ireland. 1903.

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