Halliday, M. A. K. 1925- Language, context, and text : Aspects of language in a social- semiotic perspective / M.A.K. Halliday and Ruqaiya Hasan - Oxford ; New York : Oxford University Press, 1989 - xiv, 126 p. : ill. ; 25 cm ISBN: 0194371549 Subjects--Topical Terms: SociolinguisticsSemiotics Dewey Class. No.: 401.41