@misc{indiciae8440a339779e,
  title = {Program of operation for the National Water Data Exchange (NAWDEX)},
  author = {Melvin D. Edwards},
  year = {1977},
  doi = {10.3133/ofr77708},
  url = {https://pubs.usgs.gov/publication/ofr77708},
  note = {Source identifier: ofr77708}
}