@misc{indiciaea8d39ed5ef32,
  title = {Toxicity to amphibians of environmental extracts from natural waters in National Parks and Fish and Wildlife Refuges},
  author = {C.M. Bridges and E. E. Little},
  year = {2005},
  url = {https://pubs.usgs.gov/publication/70031238},
  note = {Source identifier: 70031238}
}