TY  - BOOK
AU  - Powell,Debra
AU  - Walker,Elaine
AU  - Elsworth,Steve
TI  - Grammar pratice for upper intermediate students: with key 
SN  - 9781405853002 
PY  - 2007///
CY  - Harlow [England]
PB  - Pearson/Longman
KW  - English language
KW  -  Grammar
KW  -  Problem, exercises, etc
KW  -  Textbooks for foreign speakers
KW  - Sound recordings for foreign speakers
N1  - Includes index
ER  -