Great Britain. Ordnance Survey., O'Donovan, J., & Ordnance Survey of Ireland. (1926). Letters containing information relative to the antiquities of the County of Longford collected during the progress of the Ordnance Survey in 1837.
MLA CitationGreat Britain. Ordnance Survey., et al. Letters Containing Information Relative to the Antiquities of the County of Longford Collected During the Progress of the Ordnance Survey in 1837. 1926.
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