TY  - BOOK
AU  - Aalst,Roel M van
ED  - European Environment Agency
TI  - Air quality: annual topic update 1998 
SN  - 9291671398
U1  - 363.7392 23
PY  - 1999///
CY  - Luxembourg
PB  - Office for Official Publications of the European Communities
KW  - Air quality
KW  - European Union countries
ER  -