A deep percolation model for estimating ground-water recharge [electronic resource] : documentation of modules for the modular modeling system of the U.S. Geological Survey / by J.J. Vaccaro ; prepared in cooperation with the Bureau of Reclamation, Yakama Nation, and Washington State Department of Ecology.
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2007.