Londonderry, Co. Londonderry
Mathematical Gazetteer of the British Isles
References (show)
- Eagle, D. & Carnell, H. The Oxford Literary Guide to the British Isles. Oxford Univ. Press, 1977, p.230
- Houghton, Raymond W. The World of George Berkeley. Irish Heritage Series, No. 53. Eason & Son, Dublin, 1985.
The Mathematical Gazetteer of the British Isles was created by David Singmaster.
The original site is at THIS LINK.
The original site is at THIS LINK.