TY  - BOOK
AU  - LONGMAN
TI  - Longman essential Activator
SN  - 9781405815680
U1  - 428  LON 
PY  - 2006///
CY  - Harlow
PB  - Pearson Longman
KW  -  Longman
KW  -  essential
KW  - Activator
N1  - Standard English usage(428)
ER  -