TY - RPRT TI - Stable carbon isotopes of HCO3- in oil-field waters-implications for the origin of CO2 AU - W.W. Carothers AU - Y.K. Kharaka PY - 1980 DO - 10.1016/0016-7037(80)90140-4 UR - https://pubs.usgs.gov/publication/70012347 ID - 70012347 ER -