TY  - BOOK
AU  - SWAN,Michael
AU  - WALTER,Catherine
TI  - How English works: a grammar practice book : with answers 
PY  - 2000///
CY  - Oxford
PB  - Oxford University Press
KW  - English language
KW  - Textbooks for foreign speakers
UR  - http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=48244
ER  -