@misc{indiciae840db707e801,
  title = {Mineral resources of the Sheep Mountain Wilderness study area and the Cucamonga Wilderness and additions, Los Angeles and San Bernardino Counties, California},
  author = {James G. Evans and James Ridenour and LeRoy Pankratz and S. W. Schmauch and N. T. and Zilka},
  year = {1982},
  doi = {10.3133/b1506ae},
  url = {https://pubs.usgs.gov/publication/b1506AE},
  note = {Source identifier: b1506AE}
}