@misc{indiciae9b7781083feb,
  title = {Principal facts for gravity stations in the Sheep Hole/Cadiz Wilderness study area (CDCA-305), California},
  author = {R. E. Bracken and R.W. Simpson},
  year = {1981},
  doi = {10.3133/ofr82882},
  url = {https://pubs.usgs.gov/publication/ofr82882},
  note = {Source identifier: ofr82882}
}