@misc{indiciaebdbd64186179,
  title = {Permanent turbidity standards.},
  author = {W G Roessler and C R Brewer},
  year = {1967},
  doi = {10.1128/am.15.5.1114-1121.1967},
  url = {https://pubmed.ncbi.nlm.nih.gov/6077410/},
  note = {Source identifier: 6077410}
}