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