TY  - BOOK
AU  - Swan, Michael.
TI  - Learner English :A Teacher's Guide to Interference and other Problems /Michael Swan
SN  - 0521779391
U1  - 428.007LEA 
PY  - 2001///
CY  - Cambridge
PB  - Cambridge University Press, 
KW  - ENGLISH LANGUAGE-Study and teaching-Foreign speakers
ER  -