TY  - RPRT
TI  - Annotated bibliography of gamma-ray methods applied to gold exploration
AU  - D.B. Hoover
AU  - H. A. Pierce
PY  - 1990
DO  - 10.3133/ofr90203
UR  - https://pubs.usgs.gov/publication/ofr90203
ID  - ofr90203
ER  -