TY  - BOOK
AU  - Powell,Debra
AU  - Walker,Elaine
AU  - Elsworth,Steve
TI  - Grammar practice: for upper intermediate students : with key 
SN  - 9781405853002 (pbk.) 
PY  - 2008///
CY  - Harlow,England
PB  - Pearson/ Longman
KW  - English language
KW  - Examination, question, etc
N1  - Includes index
ER  -