@misc{indiciaeae9009b54bd2,
  title = {Status of the wolf in Michigan, 1973},
  author = {J. Hendrickson and W. L. Robinson},
  year = {1975},
  doi = {10.2307/2424554},
  url = {https://pubs.usgs.gov/publication/5221154},
  note = {Source identifier: 5221154}
}