@misc{indiciaebe597b6448d6,
  title = {Shallow ground-water quality beneath a major urban center: Denver, Colorado, USA},
  author = {B. W. Bruce and P.B. McMahon},
  year = {1996},
  doi = {10.1016/s0022-1694(96)03031-4},
  url = {https://pubs.usgs.gov/publication/70018155},
  note = {Source identifier: 70018155}
}