@misc{indiciae291fb6786553,
  title = {Microbiological monitoring for the U.S. Geological Survey National Water-Quality Assessment Program},
  author = {Donna S. Francy and Donna N. Myers and Dennis R. Helsel},
  year = {2000},
  doi = {10.3133/wri004018},
  url = {https://pubs.usgs.gov/publication/wri004018},
  note = {Source identifier: wri004018}
}