Water quality of world river basins /
Water quality of world river basins /
written and produced by UNEP GEMS collaborating Centre for Fresh Water.
- Nairobi, Kenya : United Nations Environment Programme, 1995.
- 40 p. : il. (principalmente il. col.) ; 26 cm.
- unep environment library ; no. .
Incluye bibliografia.
92-1-100607-4
TD370 / W38 1995
Incluye bibliografia.
92-1-100607-4
TD370 / W38 1995