Function of grasslands in spring region : Kamenicky project
1979
Rychnovská, Milena |
Czechoslovakia
Ecology in practice
1984
Di Castri, Francesco |
Baker, F. W. G. |
Hadley, M. |
Parcs nationaux et tourisme en Europe
1992
Richez, Gérard |
Global changes in the ozone layer as detected over Czechoslovakia
1992
Vanicek, Karel |
Conservation of nature and natural environment in the Czechoslovak socialist republic
1982
Maršáková, Marie |
Skrivánek, Frantisek |
Conservation education and training in Europe
1986
Simpson, Rosie |
Súbor prednášok z I. medzinárodného sympózia "Súc̆asný stav, ochrana a obhospodarovanie dropa veľkého (Otis tarda L.) v Československu a v strednej Europe
1979
Randik, A. K. |
Pecujeme o Zemi
1991