TY  - RPRT
AU  - World Health Organization
PY  - 1997
SN  - 92 4 157188 8
UR  - https://wedocs.unep.org/handle/20.500.11822/29545
LA  - English
KW  - nitrogen oxide
KW  - chemical
TI  - Environmental Health Criteria 188 - Nitrogen Oxides (Second Edition)
M3  - Technical report
ER  -