@misc{indiciaec1a12ca18acd,
  title = {Guidelines for collection and field analysis of water-quality samples from streams in Texas},
  author = {F.C. Wells and W.J. Gibbons and M.E. Dorsey},
  year = {1990},
  doi = {10.3133/ofr90127},
  url = {https://pubs.usgs.gov/publication/ofr90127},
  note = {Source identifier: ofr90127}
}