TY  - BOOK
AU  - Hewings, Martin.
TI  - Advanced grammar in use : a self-study reference and practice book for advanced learners of English : with answers / Martin Hewings
SN  - 0521532914 (with answers)
AV  - PE1112  H48 2005 
CY  - Cambridge : Cambridge University Press, c2005
KW  - 1.-Inglés -- Gramática \ Problemas, ejercicios, etc
N1  - Inlcuye índice; BB
ER  -