@misc{indiciae976acdfbf962,
  title = {Mineral resources of the Providence Mountains Wilderness Study Area, San Bernardino County, California},
  author = {R.J. Goldfarb and D. M. Miller and R.W. Simpson and D.B. Hoover and P. R. Moyle and J. E. Olson and R. S. Gaps},
  year = {1988},
  doi = {10.3133/b1712d},
  url = {https://pubs.usgs.gov/publication/b1712D},
  note = {Source identifier: b1712D}
}