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14. Sociolinguistics: method and interpretation Milroy, Lesley. Malden, Mass. : Blackwell Pub., 2003. ENG250
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16. Sociolinguistics: an introduction to language and society Trudgill, Peter. London : Penguin, c2000. ENG250
18. The ethnography of communication: an introduction Saville-Troike, Muriel, 1936- Malden, MA : Blackwell Pub., 2003. ENG270
19. The ethnography of communication: an introduction Saville-Troike, Muriel, 1936- Malden, MA : Blackwell Pub., 2003. ENG270