Geology and water resources of Clay County, South Dakota /
Science Center, University of South Dakota,
|Series:||Bulletin (South Dakota Geological Survey) ;
Bulletin (South Dakota Geological Survey) ; 20.
Table of Contents:
- pt. 1. Geology, by C. M. Christensen
- pt. 2. Water resources, by Neil C. Koch
- pt. 3. Basic data, by Cleo M Christensen.