TY  - BOOK
AU  - Hewings, Martin
TI  - Advanced grammar in use : a self-study reference and practice book for advanced learners of english
SN  - 978-1-107-69989-2
CY  - Cambridge
KW  - INGLES-GRAMATICA; EJERCICIOS DE GRAMATICA
N1  - With answers. -- Appendix and glossary. -- CD-ROM. -- Texto de Sala
ER  -