@misc{indiciae964eec802dd0,
  title = {Stable lead isotopic analyses of historic and contemporary lead contamination of San Francisco Bay estuary},
  author = {P.I. Ritson and R. M. Bouse and A.R. Flegal and Samuel N. Luoma},
  year = {1999},
  doi = {10.1016/s0304-4203(98)00085-1},
  url = {https://pubs.usgs.gov/publication/70021861},
  note = {Source identifier: 70021861}
}