The atlas of Britain and Northern Ireland / 
Bickmore, David Pelham.
Blackman, G. E.
Caesar, A. A. L.
Gullick, C. F. W. R.
Shaw, M. A.
Steers, James Alfred.
Worswick, G. D. N.
Oxford, 
1963.
Gazetteer. Notes & Sources.
Reference overlay.