TY  - BOOK
AU  - Lloyd, Mark
AU  - Day, Jeremy
TI  - Active grammar
T2  - Grammar reference and practice series
SN  - 9780521152471
AV  - PE 1128 L569A
PY  - 2011///
CY  - Cambridge
PB  - Cambridge Univ. Press
KW  - English language
KW  - Textbooks for foreign speakers
KW  - Grammar
KW  - Ploblems, exercises, etc
KW  - Usage
N1  - Cover title: Active grammar with answers level 3; Includes index
ER  -