@misc{indiciaec738ceef2fec,
  title = {National Water Data Exchange (NAWDEX) System 2000 data retrieval manual},
  author = {Owen O. Williams and William A. Knecht},
  year = {1981},
  doi = {10.3133/ofr81419},
  url = {https://pubs.usgs.gov/publication/ofr81419},
  note = {Source identifier: ofr81419}
}