@misc{indiciae0176926777c5,
  title = {Index to water-quality data available from the U.S. Geological Survey in machine-readable form to December 31, 1972; Northeastern region},
  author = {Charles R. Showen and Owen O. Williams},
  year = {1973},
  doi = {10.3133/wri7321},
  url = {https://pubs.usgs.gov/publication/wri7321},
  note = {Source identifier: wri7321}
}