Hydrology - Research - United States.

Hydrologic science priorities for the U.S. Global Change Research Program = an initial assessment/ by: (Language materials, printed)

Confronting the nation's water problems = the role of research/ by: (Language materials, printed)

Water quality- Research- United States.

Water resources development- Research- United States.

U.S. Global Change Research Program.

Water-supply- Research- United States.

Hydrology- Research- United States.