@misc{indiciaeb1c4c2ab37e7,
  title = {Metal speciation in the Upper Arkansas River, Colorado, 1990-93},
  author = {M. L. Clark and M.E. Lewis},
  year = {1997},
  doi = {10.3133/wri964282},
  url = {https://pubs.usgs.gov/publication/wri964282},
  note = {Source identifier: wri964282}
}