Water quality : the impact of eutrophication /
Jørgensen, Sven Erik.
Williams, W. D.(William David)
UNEP International Environmental Technology Centre.
International Lake Environment Committee.
Kusatsu, Shiga, Japan : UNEP-International Environment Technology Centre : International Lake Environment Committee Foundation,
2001.
"UNEP-IETC/ILEC Vol.3"
Eutrophication.
Water quality.