@misc{indiciaeeb568f88eba5,
  title = {Principal facts for gravity stations in the Yuma, Arizona and Blythe, California areas},
  author = {Donald L. Peterson and Arthur Conradi and Adel A. R. Zohdy},
  year = {1972},
  doi = {10.3133/70043098},
  url = {https://pubs.usgs.gov/publication/70043098},
  note = {Source identifier: 70043098}
}