1. Asnaghi C . An Analysis of Regional Lexical Variation in California English Using Site-Restricted Web Searches. 2013. Joint Ph.D. Dissertation, Università Cattolica del Sacro Cuore and University of Leuven, Milan, Italy and Leuven, Belgium.
2. Atwood EB . The Regional Vocabulary of Texas. Austin, TX: University of Texas Press; 1962.
3. Biber D . Variation Across Speech and Writing. Cambridge, UK: Cambridge University Press; 1988.
4. Bright E S . A Word Geography of California and Nevada. Volume 69. Berkeley, California: University of California Press; 1971.
5. Brooke J Wang T Hirst G . Inducing Lexicons of Formality from Corpora. In: Bel N Daille B Vasiljevs A , editors. Proceedings of the LREC 2010 Workshop. Valletta, Malta; 2010. p. 17-22.