@misc{indiciae1d9c92ac3ebe,
  title = {Spectrographic and chemical analyses of whole-rock and insoluble-residue samples, Rolla 1 degrees by 2 degrees quadrangle, Missouri; drill hole No. 64},
  author = {E. L. Mosier and B. F. Arbogast and S.K. McDanal},
  year = {1980},
  doi = {10.3133/ofr80397},
  url = {https://pubs.usgs.gov/publication/ofr80397},
  note = {Source identifier: ofr80397}
}