@misc{indiciae12b5822fa51c,
  title = {Hydraulic fracturing (fracking)},
  author = {Tanya J. Gallegos},
  year = {2018},
  doi = {10.1036/1097-8542.326700},
  url = {https://pubs.usgs.gov/publication/70205241},
  note = {Source identifier: 70205241}
}