TY  - BOOK
AU  - Murphy,Raymond
TI  - Essential grammar in use: a self-study reference and practice book for elementary students of english with answers 
SN  - 9780521675437
PY  - 2007///
CY  - Cambridge
PB  - Cambridge University Press
KW  - English language
KW  - Textbooks for foreign speakers
KW  - Grammar Problems, exercises,etc
N1  - Includes Index
ER  -