@misc{indiciaedf89b4497521,
  title = {Geologic map of the Lead Mountain 15’ quadrangle, San Bernardino County, California},
  author = {Keith A. Howard and Keith J. Jagiello and Todd T. Fitzgibbon and Barbara E. John},
  year = {2013},
  doi = {10.3133/gq1766},
  url = {https://pubs.usgs.gov/publication/gq1766},
  note = {Source identifier: gq1766}
}