T. B. Spruill
Assessment of water resources in lead-zinc mined areas in Cherokee County, Kansas, and adjacent areas
Monitoring regional ground-water quality--statistical considerations and description of a monitoring network in Kansas
Nitrate-nitrogen concentrations in ground water from three selected areas in Kansas
Nitrate-nitrogen concentrations in shallow ground water of the coastal plain of the Albemarle-Pamlico Drainage Study Unit, North Carolina and Virginia
Radon in ground water in Guilford County, North Carolina
Randon in ground water in Guilford County, North Carolina
Suspended sediment and nutrients in the upper Cape Fear River basin, North Carolina, 2002-04, with an analysis of temporal changes, 1976-2004
Water-quality assessment of the Albemarle-Pamlico drainage basin, North Carolina, and Virgina, 1992-95