TY  - RPRT
TI  - Groundwater ages and mixing in the Piceance Basin natural gas province, Colorado
AU  - Peter B. McMahon
AU  - Judith C. Thomas
AU  - Andrew G. Hunt
PY  - 2013
DO  - 10.1021/es402473c
UR  - https://pubs.usgs.gov/publication/70048199
ID  - 70048199
ER  -