Further readingBasic treatmentsCrystal, D. (2003) The Cambridge Encyclopedia of the English Language (chapter 20) (2nd edition) Cambridge University Press
Kretzschmar, W. (2004) “Regional dialects” In Finegan, E. and Rickford, J. (eds.) Language in the USA (39–57) Cambridge University Press
More detailed treatmentsChambers, J. and Trudgill, P. (1998) Dialectology (2nd edition) Cambridge University Press
Wardhaugh, R. (2006) An Introduction to Sociolinguistics (5th edition) Blackwell
American English dialectsWolfram, W. and Ward, B. (eds.) (2006) American Voices: How Dialects Differ from Coast to CoastBlackwell
British English dialectsHughes, A., Trudgill, P. and Watt, D. (2005) English Accents and DialectsHodder Arnold
Other varieties of EnglishTrudgill, P. and Hannah, J. (2008) International English (5th edition) Arnold
BilingualismMyers-Scotton, C. (2006) Multiple VoicesBlackwell
Pidgins and creolesNichols, J. (2004) “Creole languages: forging new identities” In Finegan, E. and Rickford, J. (eds.) Language in the USA (133–152) Cambridge University Press
Siegel, J. (2008) The Emergence of Pidgin and Creole LanguagesOxford University Press
The Dutch–German dialect continuumBarbour, S. and Stevenson, P. (1990) Variation in GermanCambridge University Press
Tok Pisin (baimbai)Sankoff, G. and Laberge, S. (1974) “On the acquisition of native speakers by a language” In DeCamp, D. and Hancock, I. (eds.) Pidgins and Creoles (73–84) Georgetown University Press
Hawai'i Creole EnglishSakoda, K. and Siegel, J. (2003) Pidgin GrammarBess Press
Other referencesHolmes, J. (2008) An Introduction to Sociolinguistics (3rd edition) Pearson
Lum, D. (1990) Pass On, No Pass BackBamboo Ridge Press
Romaine, S. (1988) Pidgin and Creole LanguagesLongman
Trudgill, P. (1983) On DialectBlackwell
Trudgill, P. (2000) Sociolinguistics (4th edition) Penguin
Wiley, T. (2004) “Language planning, language policy, and the English-Only Movement” In Finegan, E. and Rickford, J. (eds.) Language in the USA (319–338) Cambridge University Press