References:
[1] Ordnance Survey (2001) Ordnance Survey Master Map Real World Objects Catalogue, v. 1.0, November 2001.
[2] Pearsall, J. and B. Trumble (eds.) (1995) The Oxford English Reference Dictionary, Oxford University Press, London.
[3] Moore, W.G. (1967) A Dictionary of Geography, Adam and Charles Black, London.
[4] Monkhouse, F.J. (1966) A Dictionary of Geography, Edward Arnold Publishers, Ltd., London.
[5] Cambridge Dictionary On line (2006) Cambridge University Press.
[6] Robinson, M. (ed.) (1991) The concise Scots Dictionary, Aberdeen University Press.
[7] Chambers English Dictionary (1988) C. Schwarz, G. Davidson, A. Seaton and V. Tebbit (eds.) W & R Chambers Ltd and Cambridge University Press, Edinburgh.
[8] Collins English Dictionary (1986) P. Hanks (ed.) William Collins Sons. & Co. Ltd. Glasgow.
[9] DEFRA (1981) Wildlife and Countryside Act
[10] OS GeoSemantics Team Definition (2006)
[11] Office of National Statistics (1999) The Gazetteer of the old and new geographies of the United Kingdom, London.
[12] http://www.statistics.gov.uk/geography/metropolitan.asp (2004)
[13] http://www.cornwall.gov.uk/index.cfm?articleid=425