@misc{indiciae48776fd2b866,
  title = {Disappearance of the cascades frog Rana cascadae at the southern end of its range, California, USA},
  author = {Gary M. Fellers and Charles A. Drost},
  year = {1993},
  doi = {10.1016/0006-3207(93)90447-9},
  url = {https://pubs.usgs.gov/publication/1008012},
  note = {Source identifier: 1008012}
}