TY  - BOOK
ED  - United Nations Environment Programme.
ED  - GEMS Monitoring and Assessment Research
ED  - World Resources Institute.
TI  - Environmental data report
SN  - 0631169873
PY  - 1989///
CY  - Oxford, UK
PB  - B. Blackwell
KW  - Environmental monitoring
KW  - Periodicals
KW  - Pollution
KW  - Measurement
N1  - At head of title. United Nations Environmental Programme; Prepared for UNEP by the GEMS Monitoring and Assessment Research Centre, in co-operation with the World Resources Institute, and: UK Dept. of the Environment, London
ER  -