@misc{indiciae09a6e78774a1,
  title = {Demographic patterns of Ferocactus cylindraceus in relation to substrate age and grazing history},
  author = {Janice E. Bowers},
  year = {1997},
  doi = {10.1023/a:1009767621391},
  url = {https://pubs.usgs.gov/publication/70020187},
  note = {Source identifier: 70020187}
}