@misc{indiciaebf814a528ffc,
  title = {Preliminary complete Bouguer gravity map of Fresno 1° x 2° quadrangle, California},
  author = {H. W. Oliver and S. L. Robbins},
  year = {1974},
  doi = {10.3133/ofr74177},
  url = {https://pubs.usgs.gov/publication/ofr74177},
  note = {Source identifier: ofr74177}
}