Environmentally sound management of Lake Erhai and Xier river Basin
20.1
E 54
Environmentally sound management of Lake Erhai and Xier river Basin / .- CHN.: United nations., 2000.- 257p.: .- (International environmental tehnology centre).- ISBN ISBN 92-807-1509-7:6400.00₮.
МУҮНС салбар | Юнеско танхим 2 давхар-7173
E 54
Environmentally sound management of Lake Erhai and Xier river Basin / .- CHN.: United nations., 2000.- 257p.: .- (International environmental tehnology centre).- ISBN ISBN 92-807-1509-7:6400.00₮.
МУҮНС салбар | Юнеско танхим 2 давхар-7173
