APA (7th ed.) Citation

(1846). Ordnance Survey maps of Ireland, 1839-1846.

Chicago Style (17th ed.) Citation

Ordnance Survey Maps of Ireland, 1839-1846. 1846.

MLA (9th ed.) Citation

Ordnance Survey Maps of Ireland, 1839-1846. 1846.

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