@misc{indiciaed1d8caacabd3,
  title = {Occurrence and trends in the concentrations of fecal-indicator bacteria and the relation to field water-quality parameters in the Allegheny, Monongahela, and Ohio Rivers and selected tributaries, Allegheny County, Pennsylvania, 2001–09},
  author = {John W. Fulton and Edward H. Koerkle and Jamie L. McCoy and Linda F. Zarr},
  year = {2016},
  doi = {10.3133/sir20155136},
  url = {https://pubs.usgs.gov/publication/sir20155136},
  note = {Source identifier: sir20155136}
}