@misc{indiciae1863a3d39fb4,
  title = {Organic petrographic evaluation of carbonaceous material in sediments of the Kinnickinnic River, Milwaukee, WI, U.S.A.},
  author = {Brett J. Valentine and John H Krahling and Stephen D. Mueller},
  year = {2021},
  doi = {10.1016/j.scitotenv.2021.145704},
  url = {https://pubs.usgs.gov/publication/70220584},
  note = {Source identifier: 70220584}
}