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2
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The watershed : water from the mountains into the sea / [text, Walter Rast and Alberto Calcagno ; editing, William D. Williams].
- 551.48 R229 2001
- Rast, Walter.
- United Nations Environment Programme. International Environmental Technology Centre : International Lake Environment Committee Foundation,
- 2001.
- Kusatsu, Shiga, Japan :
-
Water quality : the impact of eutrophication / [text, Sven Erik Jrgensen ; editing, William D. Williams].
- 577.63158 J899
- Jørgensen, Sven Erik, 1934-
- UNEP-International Environment Technology Centre : International Lake Environment Committee Foundation,
- 2001.
- Kusatsu, Shiga, Japan :