TY  - GEN
AU  - United Nations Environment Programme
A4  - Gwynne, M. D.
A4  - Sella, F.
A4  - Wallen, C. C.
PY  - 1978
UR  - https://wedocs.unep.org/handle/20.500.11822/30366
LA  - English
KW  - pollution
KW  - environmental monitoring
TI  - The Global Environment Monitoring System: Principles and Progress
M3  - Meeting resource
ER  -