@misc{indiciaef93c711f758a,
  title = {Some perspectives on heavy metal concentrations in shellfish and sediment in San Francisco Bay, California},
  author = {W.L. Bradford and S. N. Luoma},
  year = {1980},
  url = {https://pubs.usgs.gov/publication/70156312},
  note = {Source identifier: 70156312}
}