@misc{indiciae2ea81bc1059d,
  title = {Preliminary results from exploratory sampling of wells for the California oil, gas, and groundwater program, 2014–15},
  author = {Peter B. McMahon and Justin T. Kulongoski and Michael T. Wright and Michael T. Land and Matthew K. Landon and Isabelle M. Cozzarelli and Avner Vengosh and George R. Aiken},
  year = {2016},
  doi = {10.3133/ofr20161100},
  url = {https://pubs.usgs.gov/publication/ofr20161100},
  note = {Source identifier: ofr20161100}
}