TY  - BOOK
AU  - Swan, Michael
AU  - Smith, Bernard
TI  - LEARNER ENGLISH
SN  - 0521269105
U1  - 428.007 
PY  - 1987///
CY  - Cambridge
PB  - Cambridge Univ. Pr.
KW  - English Language -- Study And Teaching -- Foreign Speakers
KW  - Interference (Linguistics)
ER  -