@misc{indiciaeb57e07521b6c,
  title = {Geochemical controls on lead concentrations in stream water and sediments},
  author = {J.D. Hem},
  year = {1976},
  doi = {10.1016/0016-7037(76)90106-x},
  url = {https://pubs.usgs.gov/publication/70011087},
  note = {Source identifier: 70011087}
}