TY  - BOOK
AU  - Fuchs, Marjorie; Bonner, Margaret
TI  - Grammar express, intermediate / Marjorie Fuchs, Margaret Bonner
SN  - 0-13-033379-1
U1  - 425 F951 
PY  - 2002///
CY  - LONGMAN
KW  - 1. OBRAS GENERALES
N1  - Present progresive; simple present tenso; simple past tense; present perfect and past perfect
ER  -