Index to the Townland Survey of the County of Londonderry / engraved at the Ordnance Survey Office

Chicago citation style
Ordnance Survey of Northern Ireland. Index to the Townland Survey of the County of Londonderry / engraved at the Ordnance Survey Office. 1857. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/1242. (Accessed January 24, 2020.)
APA citation style
Ordnance Survey of Northern Ireland, (1857) Index to the Townland Survey of the County of Londonderry / engraved at the Ordnance Survey Office. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/1242
MLA citation style
Ordnance Survey of Northern Ireland. Retrieved from the Digital Public Library of America <http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/1242>.
Note: These citations are programmatically generated and may be incomplete.