Books like An atlas of English dialects
More by Clive Upton
The Oxford dictionary of pronunciation for current English2001
Oxford rhyming dictionary2004
The British Isles2008- Lexical erosion in English regional dialectsLexical erosion in English regional dialects1999
Word maps1987- Joseph Wright's English dialect dictionary and beyondJoseph Wright's English dialect dictionary and beyond2010
Analysing 21st Century British English Conceptual And Methodological Aspects Of The Voices Project2013
Survey of English dialects1994