@misc{indiciae8795b779fef7,
  title = {Use of multi-opening burrow systems by black-footed ferrets},
  author = {Dean E. Biggins},
  year = {2012},
  doi = {10.3398/064.072.0202},
  url = {https://pubs.usgs.gov/publication/70003990},
  note = {Source identifier: 70003990}
}