@misc{indiciae17438b897831,
  title = {Quaternary geology and liquefaction susceptibility, Napa, California 1:100,000 quadrangle: A digital database},
  author = {Janet M. Sowers and Jay S. Noller and William R. Lettis},
  year = {1998},
  doi = {10.3133/ofr98460},
  url = {https://pubs.usgs.gov/publication/ofr98460},
  note = {Source identifier: ofr98460}
}