TY  - BOOK
ED  - GEMS Monitoring and Assessment Research Centre.
ED  - United nations Environmental Progamme.
ED  - World Resources Institute.
TI  - Environmental data report ...
SN  - 0631190430 (1993 - 94)
SN  - 09569324
U1  - 363.7 
PY  - 1993///-94
CY  - Oxford U.K.
PB  - Blackwell Publishers
KW  - Environmental and monitoring pollution
ER  -