@misc{indiciae736b7fe75d6f,
  title = {Geology of the State of Morelos and contiguous areas in south-central Mexico},
  author = {Carl F. Fries},
  year = {1959},
  doi = {10.3133/ofr5941},
  url = {https://pubs.usgs.gov/publication/ofr5941},
  note = {Source identifier: ofr5941}
}