@misc{indiciae70f1400d5598,
  title = {An evaluation of parturition indices in fishers},
  author = {H.C. Frost and E.C. York and W.B. Krohn and K.D. Elowe and T.A. Decker and S.M. Powell and T.K. Fuller},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/70021817},
  note = {Source identifier: 70021817}
}