Forshung in mitteleuropäischen Nationalparken
1979
Water management
Lake management
1980
Jorgensen, S. E. |
Large scale water transfers : emerging environmental and social experiences
1985
Golubev, Genady N. |
Biswas, Asit K. |
Changing course : report of the technical sessions 2nd general assembly
2001
Morry, Chris |
Water and arid lands of the Western United States
1988
El-Ashry, Mohamed T. |
Gibbons, Diana C. |