@misc{indiciaecea9b6c06dd0,
  title = {Lead concentrations in bullfrog Rana catesbeiana and green frog R. clamitans tadpoles inhabiting highway drainages},
  author = {C.W. Birdsall and C.E. Grue and A. Anderson},
  year = {1986},
  doi = {10.1016/0143-1471(86)90098-x},
  url = {https://pubs.usgs.gov/publication/5221504},
  note = {Source identifier: 5221504}
}