TY  - BOOK
AU  -  Sinclair, Barbara.
TI  - Activate your English. Pre-intermediate 
SN  - 0521425689 ;9780521425681 ;0521425697
PY  - 1995///
CY  - Cambridge : 
PB  - Cambridge University Press, 
KW  - English language -- Study and teaching -- Foreign speakers
ER  -