@misc{indiciae21bc3ca82410,
  title = {The decline of amphibians in California's Great Central Valley},
  author = {Robert N. Fisher and H.B. Shaffer},
  year = {2002},
  doi = {10.1046/j.1523-1739.1996.10051387.x},
  url = {https://pubs.usgs.gov/publication/1008037},
  note = {Source identifier: 1008037}
}