TY  - BOOK
AU  - Swan Michael 
TI  - How English works: A Grammar practice book 
SN  - 0-19-431457-X
U1  - 428.24 23
PY  - 1997///
CY  - New York.
PB  - Oxford University Press
N1  - Introduction
Test yourself
Test yourself: answers
Explanations and exercises: list of sections
Phonetic alphabet 
Explanations and exercises
Key to Do it yourself exercises
Index
ER  -