TY  - RPRT
TI  - Aerial gamma-ray contour maps of regional surface concentrations of potassium, uranium, and thorium in Nevada
AU  - J. S. Duval
PY  - 1988
DO  - 10.3133/gp982
UR  - https://pubs.usgs.gov/publication/gp982
ID  - gp982
ER  -