TY  - BOOK
AU  - Greenbaum,Sidney .
TI  - A student’s grammar of the english language
U1  - 428.007 G795s 1990 
PY  - 1990///
CY  - Essex
PB  - Longman, 
KW  - INGLES
KW  - GRAMATICA
KW  - ENSEÑANZA
N2  - 23th. imp.: 2010
ER  -