TY  - RPRT
TI  - Survey of helium in natural water wells and springs in southwest Montana and vicinity and Imperial Valley, California; Part III, January 1 - December 31, 1980
AU  - Willis P. Doering
AU  - Irving Friedman
AU  - Guida Veronda
PY  - 1981
DO  - 10.3133/ofr81893
UR  - https://pubs.usgs.gov/publication/ofr81893
ID  - ofr81893
ER  -