Title
Hydrologic units : Louisa County, [Virginia] (109) / prepared by Virginia Department of Conservation and Recreation, Division of Soil and Water Conservation ; prepared for USDA Natural Resources Conservation Service, Virginia Department of Conservation and Recreation, Virginia Department of Environmental Quality.
Published
Ft. Worth, TX : USDA-NRCS-National Cartographic and GIS Center ; Richmond, Va. : The Division [distributor, 1995]