TY  - BOOK
AU  - Hewings, Martin
TI  - Advanced grammar in use : a self-study reference and practice book for advanced learners of english
SN  - 0-521-49868-6
CY  - Cambridge
KW  - INGLÃS-GRAMÃTICA
KW  - EJERCICIOS DE GRAMÃTICA
N1  - With answers. -- Appendix and glossary
ER  -