Powrót
Rekordy dla Water Series
R270
Protection of water resources and aquatic ecosystems / United Nations. Economic Commission For Europe. Geneva. - New York : United Nations, 1993. - V, 50 s. ; 30 cm. - (Water Series, ISSN 1020-0886 ; no 1)
ISBN 92-1-116571-7
[000006313]
R929
Protection and sustainable use of waters : recommendations to ECE governments / United Nations. Economic Commission for Europe. - New York : United Nations, 1995. - V, 48 s. ; 30 cm. - (Water Series, ISSN 1020-0886 ; no. 2)
ISBN 92-1-116627-6
[000012561]