@misc{indiciae515cacffa215,
  title = {Movie footage of the activity of Paricutin Volcano, Michoacan, Mexico, 1945-1952},
  author = {Carl Fries and Kenneth K. Segerstrom and R.I. Tilling and D. E. White and R.E. Wilcox},
  year = {1993},
  doi = {10.3133/ofr93197b},
  url = {https://pubs.usgs.gov/publication/ofr93197B},
  note = {Source identifier: ofr93197B}
}