5[1]Bex,Tony. Variety in Written English [M]. London and New York: Routledge, 1996.
6[2]Cook,Guy. The Discourse of Advertising[M]. London and New York: Routledge, 1992.
7[3]Freeborn, Dennis. Varieties of English[M]. Macmillan,1988.
8[4]Halliday, M. A. K. Language as Social Semiotic[M]. London:Edward Arnold, 1978.--An Introduction to Functional Grammar [M]. London:Edward, 1985/1994.
9[5]Iedema, Rick. The language of administration[A]. Genre and Institutions[C] (edited by Frances Christie and J. R. Martin)London and Whashington: Cassel, 1997.
