/ Prepared under the joint sponsorship of the United Nations Environment Programme, World Health Organization, United Nations Educational, Scientific, and Cultural Organization and World Meteorological Organization
Geneva
: World Health Organization
, 1987.
1 v. (various pagings)
: ill., maps ; 30 cm.
At head of title: GEMS: Global Environment Monitoring System..
Print
Water quality- Measurement
Water quality monitoring stations
TD367
.
G4
1987
United Nations Environment Programme. (UNEP)"
World Health Organization. (WHO )
United Nations Educational, Scientific, and Cultural Organization. (UNESCO)