TY  - BOOK
AU  - Seidl, Jennifer
AU  - Swan, Michael
TI  - Basic English usage exercises with key
SN  - 0194311880
U1  - 428.24076 
PY  - 1986///
CY  - Oxford
PB  - Oxford University Press
KW  - English language - Grammar - Study guides
KW  - English language - Textbooks for foreign speakers
ER  -