TY  - RPRT
TI  - Carbon isotope systematics and CO2 sources in The Geysers-Clear Lake region, northern California, USA
AU  - D. Bergfeld
AU  - F. Goff
AU  - C. J. Janik
PY  - 2001
DO  - 10.1016/s0375-6505(00)00051-1
UR  - https://pubs.usgs.gov/publication/70023658
ID  - 70023658
ER  -