@misc{indiciae694e329f3f55,
  title = {Geology and mineral resource assessment of the Springfield 1° x 2° quadrangle, Missouri, as appraised in September 1985},
  author = {Walden P. Pratt},
  year = {1991},
  doi = {10.3133/b1942},
  url = {https://pubs.usgs.gov/publication/b1942},
  note = {Source identifier: b1942}
}