1. Gamma-ray Spectrometry of Rocks;Adams,1970
2. Abundance and distribution of thorium in the carbonatite stock at Iron Hill, Powderhorn district, Gunnison County, Colorado;Armbrustmacher;U.S. Geol. Surv.,1979
3. The Landsat satellite system;Brian,1980
4. Integration of multiple data sets for resource evaluation;Balog,1983
5. The Los Alamos Scientific Laboratory approach to hydrogeochemical and stream sediment reconnaissance for uranium in the United States;Bolivar,1980