Critical levels for ozone-level II : workshop under the convention on long-range transboundary air pollution of the UN/ECE Gerzensee, Switzerland, 11-15 April 1999
Bern : Swiss Agency for the Environment, Forests and Landscape , 1999. - 333 s. : obr., tab., 30 cm
xkni - KNIHY
1, z toho voľných 1