@misc{indiciae072e33a54a70,
  title = {Analyses of rock, soil, stream sediments, and heavy-mineral concentrates of the Elkhorn Wilderness, Montana},
  author = {J. M. Motooka and J. B. McHugh and W. R. Miller and S. D. Ludington and W.R. Greenwood},
  year = {1978},
  doi = {10.3133/ofr78250},
  url = {https://pubs.usgs.gov/publication/ofr78250},
  note = {Source identifier: ofr78250}
}