@misc{indiciaee72939121402,
  title = {Decline of ranid frog species in western North America: Are bullfrogs (Rana catesbeiana) responsible?},
  author = {M.P. Hayes and M.R. Jennings},
  year = {1986},
  doi = {10.2307/1564246},
  url = {https://pubs.usgs.gov/publication/1007559},
  note = {Source identifier: 1007559}
}