TY  - GEN
AU  - Murphy,Raymond
TI  - Basic grammar in use: self study reference and practice for students of english with answers 
SN  - 9780521626002
U1  - LEI 425 
PY  - 2002///
CY  - Estados Unidos de América
PB  - Cambridge University Press
KW  - Inglés - Gramática
ER  -