@misc{indiciae22a41c8eb306,
  title = {Quality assurance guidelines for the analyses of sediment concentration by U.S. Geological Survey sediment laboratories},
  author = {J. M. Knott and Clyde J. Sholar and Wilbur J. Matthes},
  year = {1992},
  doi = {10.3133/ofr9233},
  url = {https://pubs.usgs.gov/publication/ofr9233},
  note = {Source identifier: ofr9233}
}