@misc{indiciae586582deb93e,
  title = {Geochemical and mineralogic maps of the Dragoon Mountains Roadless Area, Cochise County, Arizona},
  author = {K. C. Watts and J.R. Hassemer and M. S. Erickson and Harald Drewes},
  year = {1984},
  doi = {10.3133/mf1521e},
  url = {https://pubs.usgs.gov/publication/mf1521E},
  note = {Source identifier: mf1521E}
}