@misc{indiciae3081ecd57f10,
  title = {Chapter A5. Section 6.4.B. Low-Level Mercury},
  author = {Michael Edward Lewis and Mark E. Brigham},
  year = {2004},
  doi = {10.3133/twri09a5.6.4.b},
  url = {https://pubs.usgs.gov/publication/twri09A5.6.4.B},
  note = {Source identifier: twri09A5.6.4.B}
}