Troubled waters : new policies for managing water in the American west
1986
El-Ashry, Mohamed T. |
Gibbons, Diana C. |
El-Ashry, Mohamed T.
Water and arid lands of the Western United States
1988
El-Ashry, Mohamed T. |
Gibbons, Diana C. |
Effective use of increasing conservation funds in the development process
El-Ashry, Mohamed T. |
Effective use of increasing conservation funds in the development process
El-Ashry, Mohamed T. |
Water and arid lands of the western United States
1988
El-Ashry, Mohamed T. |
Gibbons, Diana C. |