TY  - BOOK
T1  - Longman advanced grammar : reference and practice
A1  - Alexander, L.G
LA  - English
PP  - Essex
PB  - Longman
YR  - 1993
UL  - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dhu.koha96548
OP  - 304
SN  - 0582079780
ER  -