@misc{indiciaeab8950a18bff,
  title = {Geology and asphalt deposits of north-central Guadalupe County, New Mexico},
  author = {Joseph M. Gorman and Raymond C. Robeck},
  year = {1946},
  doi = {10.3133/om44},
  url = {https://pubs.usgs.gov/publication/om44},
  note = {Source identifier: om44}
}