TY  - BOOK
ED  - United Nations Environment Programme
ED  - GEMS Monitoring and Assessment Research Centre
ED  - World Resources Institute
TI  - Environmental data report
SN  - 0631
PY  - 1991///
CY  - London
PB  - United Nations Environment Programme
KW  - Pollution
KW  - Environmental monitoring
N1  - United Nations  Environment Programme
ER  -