TY  - RPRT
TI  - Survey of helium in soil gases of Long Valley, California
AU  - Margaret Hinkle
AU  - James E. Kilburn
PY  - 1980
DO  - 10.3133/ofr80612
UR  - https://pubs.usgs.gov/publication/ofr80612
ID  - ofr80612
ER  -