@misc{indiciaedd4260134a1b,
  title = {Water-quality studies in the Catskill region of New York},
  author = {Douglas A. Burns and Peter S. Murdoch and Gregory B. Lawrence},
  year = {1991},
  doi = {10.3133/ofr9230},
  url = {https://pubs.usgs.gov/publication/ofr9230},
  note = {Source identifier: ofr9230}
}