@misc{indiciaebb6cbf893fef,
  title = {Environmental geology: Our professional public responsibility},
  author = {L. C. Gerhard and L. L. Brady},
  year = {1999},
  doi = {10.1007/s002540050353},
  url = {https://pubs.usgs.gov/publication/70022019},
  note = {Source identifier: 70022019}
}