@misc{indiciae75dcf5a010f2,
  title = {Analytical data for geologic units in Missouri and parts of Kansas, Oklahoma and Arkansas},
  author = {Josephine G. Boerngen and George Van Trump and Richard J. Ebens},
  year = {1975},
  doi = {10.3133/ofr75137},
  url = {https://pubs.usgs.gov/publication/ofr75137},
  note = {Source identifier: ofr75137}
}