@misc{indiciaecf35fbc3b068,
  title = {Radium content of oil- and gas-field produced waters in the northern Appalachian Basin (USA): Summary and discussion of data},
  author = {E. L. Rowan and M.A. Engle and C.S. Kirby and T. F. Kraemer},
  year = {2011},
  doi = {10.3133/sir20115135},
  url = {https://pubs.usgs.gov/publication/sir20115135},
  note = {Source identifier: sir20115135}
}