@misc{indiciae892c8c19097c,
  title = {Quality and age of shallow groundwater in the Bakken Formation production area, Williston Basin, Montana and North Dakota},
  author = {Peter B. McMahon and Rodney R. Caldwell and Joel M. Galloway and Joshua F. Valder and Andrew G. Hunt},
  year = {2014},
  doi = {10.1111/gwat.12296},
  url = {https://pubs.usgs.gov/publication/70141030},
  note = {Source identifier: 70141030}
}