@misc{indiciae36c087b0c38c,
  title = {Summary geochemical maps of the Harrison 1° x 2° quadrangle, Arkansas and Missouri},
  author = {R. L. Erickson and Barbara Chazin and M. S. Erickson},
  year = {1989},
  doi = {10.3133/mf1994a},
  url = {https://pubs.usgs.gov/publication/mf1994A},
  note = {Source identifier: mf1994A}
}