@misc{indiciae550057f45509,
  title = {Protocol for monitoring metals in Ozark National Scenic Riverways, Missouri: Version 1.0},
  author = {Christopher J. Schmitt and William G. Brumbaugh and John M. Besser and Jo Ellen Hinck and David E. Bowles and Lloyd W. Morrison and Michael H. Williams},
  year = {2008},
  doi = {10.3133/ofr20081269},
  url = {https://pubs.usgs.gov/publication/ofr20081269},
  note = {Source identifier: ofr20081269}
}