@misc{indiciaeaa5e7582b765,
  title = {Cadmium, nickel, lead, and zinc in earthworms from roadside soil},
  author = {C.D. Gish and R. E. Christensen},
  year = {2002},
  doi = {10.1021/es60083a011},
  url = {https://pubs.usgs.gov/publication/5221228},
  note = {Source identifier: 5221228}
}