@misc{indiciae1d17c12c2953,
  title = {Preliminary isostatic residual gravity map of the San Jose 1:100,000 scale quadrangle, California},
  author = {Bruce A. Chuchel and Robert C. Jachens},
  year = {1990},
  doi = {10.3133/ofr9055},
  url = {https://pubs.usgs.gov/publication/ofr9055},
  note = {Source identifier: ofr9055}
}