@misc{indiciae04ce7ca54a82,
  title = {Concentrations of metals in aquatic invertebrates from the Ozark National Scenic Riverways, Missouri},
  author = {Christopher J. Schmitt and William G. Brumbaugh and John M. Besser and Thomas W. May},
  year = {2007},
  doi = {10.3133/ofr20071435},
  url = {https://pubs.usgs.gov/publication/ofr20071435},
  note = {Source identifier: ofr20071435}
}