TY  - BOOK
TI  - AIR QUALITY GUIDELINES FOR EUROPE
SN  - 9289011149
U1  - 363.7392 
PY  - 1987///
CY  - BELGICA
PB  - WORLD HEALTH ORGANIZATION
KW  - CONTAMINACION DEL AIRE
KW  - PREVENCION Y CONTROL
ER  -