@misc{indiciaec297d025bb4d,
  title = {Oil possibilities of an area northeast of Petaluma, Sonoma County, California: Geological notes},
  author = {Walter Curran Mendenhall},
  year = {1927},
  doi = {10.1306/3d932787-16b1-11d7-8645000102c1865d},
  url = {https://pubs.usgs.gov/publication/70271431},
  note = {Source identifier: 70271431}
}