@misc{indiciae7fd94e0df3f1,
  title = {Chemical analysis of 75 crude oil samples from Pliocene sand units, Elk Hills oil field, California},
  author = {Peter M. Gerrild and Robert Joseph Lantz},
  year = {1969},
  doi = {10.3133/ofr69105},
  url = {https://pubs.usgs.gov/publication/ofr69105},
  note = {Source identifier: ofr69105}
}