TY  - BOOK
AU  - Bald,W.D.
AU  - Schwarz, A.
AU  - Cobb,D.J.
TI  - Active grammar
SN  - 0582517389
PY  - 1986///
CY  - England
PB  - Longman
KW  - English language
KW  - Grammar -
KW  - 1950-
ER  -