APA
Jørgensen S. E., Löffler H., . (1990). Guidelines of lake management. Otsu, Shiga, Japan: International Lake Environment Committee.
Chicago
Jørgensen Sven Erick, Löffler Heinz, . 1990. Guidelines of lake management. Otsu, Shiga, Japan: International Lake Environment Committee.
Harvard
Jørgensen S. E., Löffler H., . (1990). Guidelines of lake management. Otsu, Shiga, Japan: International Lake Environment Committee.
MLA
Jørgensen Sven Erick, Löffler Heinz, . Guidelines of lake management. Otsu, Shiga, Japan: International Lake Environment Committee. 1990.
TekstSzczegóły wydania: Otsu, Shiga, Japan : International Lake Environment Committee : United Nations Environment Programme, 1990.Opis: [10], 174 s. : il. ; 24 cmTyp zawartości: 
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