@misc{indiciae567518193d58,
  title = {Principal facts for gravity stations in the Big Maria, Riverside, and Whipple Mountains, California},
  author = {Thomas B. Gage and Robert W. Simpson},
  year = {1981},
  doi = {10.3133/ofr8130},
  url = {https://pubs.usgs.gov/publication/ofr8130},
  note = {Source identifier: ofr8130}
}