To locate more book resources regarding dialects and phonetic variations of American English, use Research@UWW.
The following are a few suggested searches. Refine My Results to Books to locate both hard copy and ebooks.
These searches will help you get started:
English language -- Dialects -- United States
English language -- Variation -- United States
Note more specific subject headings as well:
English language -- Dialects -- Appalachian Region
English language -- Variation -- Foreign countries
A small sample of books of notable interest in the UW-W Andersen Library collection, as well as additional ebook resources, is listed below.
Browse key journals published by reputable organizations to find scholarly articles about your topic.