@misc{indiciaeb8e90338fb47,
  title = {Preliminary report on effect of bullfrogs on wetland herpetofaunas in southeastern Arizona},
  author = {C.R. Schwalbe and P.C. Rosen},
  year = {1988},
  url = {https://pubs.usgs.gov/publication/2002201},
  note = {Source identifier: 2002201}
}