International Lake Environment Committee & United Nations Environment Programme. Guidelines of the lake management. International Lake Environment Committee Foundation United Nations Environment Programme c1988-.
Citace podle Chicago (17th ed.)International Lake Environment Committee a United Nations Environment Programme. Guidelines of the Lake Management. Shiga, Japan, [Nairobi]: International Lake Environment Committee Foundation United Nations Environment Programme c1988-.
Citace podle MLA (9th ed.)International Lake Environment Committee a United Nations Environment Programme. Guidelines of the Lake Management. International Lake Environment Committee Foundation United Nations Environment Programme c1988-.
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