The Danube : for whom and for what? : final report
1993
Water management
The scientific management of animal and plant communities for conservation
1971
Duffey, Eric |
Watt, A. S. |
Lake Balaton : research and management
1988
Misley, Károly |
Nature reserves in Israel (suggestions for management)
1968
Mörzer Bruyns, M. F. |
Zagrozenie Parków Narodowych w Polsce
1985
Grodzinska, Krystyna |
Olaczek, Romuald |
The magnificent experiment : building the Salt River reclamation project 1890-1917
1986
Smith, Karen L. |