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  - 0521357705
U1  - 428.24 
PY  - 1991///].
CY  - Cambridge: 
PB  - Cambridge University Press, 
KW  - English language
KW  - Grammar
N1  - Includes index
ER  -