@misc{indiciae978abd7d1784,
  title = {Ground-water pollution by nitrogen compounds at Olean, New York; progress report, June 1977},
  author = {Allan D. Randall},
  year = {1978},
  doi = {10.3133/ofr78304},
  url = {https://pubs.usgs.gov/publication/ofr78304},
  note = {Source identifier: ofr78304}
}