@misc{indiciaebc4389d326f1,
  title = {Bouguer gravity map of southern San Francisco Bay region, California},
  author = {S. L. Robbins and C. W. Roberts and R. H. Chapman},
  year = {1982},
  doi = {10.3133/mf780c},
  url = {https://pubs.usgs.gov/publication/mf780C},
  note = {Source identifier: mf780C}
}