TY  - RPRT
TI  - Uranium, potassium, and thorium contour maps derived from a helicopter gamma-ray spectrometer survey of the Getchell Trend, Humboldt County, Nevada
AU  - Inc. with an introduction by Pitkin Prepared by TerraSense
AU  - P. L. Hill
PY  - 1989
DO  - 10.3133/ofr89287
UR  - https://pubs.usgs.gov/publication/ofr89287
ID  - ofr89287
ER  -