TY  - RPRT
TI  - A neutron activation analysis procedure for the determination of uranium, thorium and potassium in geologic samples
AU  - P. J. Aruscavage
AU  - Hugh T. Millard
PY  - 1972
DO  - 10.1007/bf02518619
UR  - https://pubs.usgs.gov/publication/70000814
ID  - 70000814
ER  -