Pipiringos, George Nicholas 1918-
Geology and Uranium deposits in the Cave hills area, Harding county, South Dakota / by G. N. Pipiringos, W. A. Chisholm and R. C. Kepferle. -- Washington : United States Government Printing Office, 1965 - 64 p. + map. -- (Geological Survey Professional Paper ; 476-A).
Geología
Yacimientos de Uranio
553.495
Geology and Uranium deposits in the Cave hills area, Harding county, South Dakota / by G. N. Pipiringos, W. A. Chisholm and R. C. Kepferle. -- Washington : United States Government Printing Office, 1965 - 64 p. + map. -- (Geological Survey Professional Paper ; 476-A).
Geología
Yacimientos de Uranio
553.495