@misc{indiciae783b91c8d304,
  title = {Spectrographic and chemical analyses of whole-rock and insoluble-residue samples, Rolla 1 degrees by 2 degrees quadrangle, Missouri; drill holes No. 26 and 27},
  author = {E. L. Mosier and J.G. Viets and M. S. Erickson and S.K. McDanal},
  year = {1980},
  doi = {10.3133/ofr80702},
  url = {https://pubs.usgs.gov/publication/ofr80702},
  note = {Source identifier: ofr80702}
}