@misc{indiciae2adfa671b5ee,
  title = {Magnetic map of the Irish Hills and surrounding areas, San Luis Obispo County, central California},
  author = {V.E. Langenheim and J. T. Watt and K.M. Denton},
  year = {2012},
  doi = {10.3133/ofr20121080},
  url = {https://pubs.usgs.gov/publication/ofr20121080},
  note = {Source identifier: ofr20121080}
}