TY  - BOOK
AU  - Halliday,M.A.K.
AU  - Martín,J.R.
TI  - Readings in systemic linguistics
SN  - 0713436786
U1  - 800.1 
PY  - 1981///
CY  - London
PB  - Batsford Academic and Educational Ltd.
KW  - GRAMATICA INGLESA
ER  -