1. Appraisal of the water resources of the Big Sioux aquifer, Lincoln and Union counties, South Dakota Author/Creator: Niehus, Colin A., author Publication/Creation: [Reston, Virginia?] : U.S. Department of the Interior, U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
2. Appraisal of the water resources of the eastern part of the Tulare aquifer, Beadle, Hand, and Spink Counties, South Dakota Author/Creator: Kuiper, Logan K., author Publication/Creation: Huron, South Dakota : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading