TY  - BOOK
AU  - CAMPBELL,Colin
AU  - GUDE,Kathy
AU  - DUCKWORTH,Michael
TI  - Matrix: pre-intermediate teacher's book 
SN  - 0194703150
PY  - 2002///
CY  - Oxford
PB  - Oxford University Press
KW  - English language
KW  - Textbooks for foreigners |(pre-intermediate)
ER  -