Safeguarding the world's water /
Safeguarding the world's water /
United Nations Environment Programme.
- Nairobi, Kenya : The Programme, [198-]
- [8] p. : ill.
- UNEP environment brief ; no. 6 .
89090350
United Nations--Environmental policy--Periodicals.
Environmental policy--Periodicals.
Water quality management
89090350
United Nations--Environmental policy--Periodicals.
Environmental policy--Periodicals.
Water quality management