TY  - BOOK
AU  - Halliday, M.A.K.
AU  - Halliday, M.A.K. Hasan, Rugaiya
TI  - Language, context and text : aspects of language in a social - semiotic perspective
U1  - PX 
PY  - 1989///
CY  - Oxford
PB  - Univ. Press
KW  - PX
ER  -