@misc{indiciaec73060f6c6ba,
  title = {Spectrographic and chemical analyses of whole-rock and insoluble-residue samples, Rolla 1° x 2° quadrangle, Missouri: Drill hole No. 6},
  author = {J.G. Viets and E. L. Mosier and D. F. Siems and S.K. McDanal},
  year = {1978},
  doi = {10.3133/ofr78470b},
  url = {https://pubs.usgs.gov/publication/ofr78470B},
  note = {Source identifier: ofr78470B}
}