@misc{indiciae53ec14434862,
  title = {Geologic investigations in the Parícutin area, Mexico},
  author = {Kenneth K. Segerstrom and H. Williams and R.E. Wilcox and W.P. Foshag and Jenaro R. Gonzales},
  year = {1956},
  doi = {10.3133/b965},
  url = {https://pubs.usgs.gov/publication/b965},
  note = {Source identifier: b965}
}