@misc{indiciae2919679d8cfc,
  title = {National water resources and problems},
  author = {Roy E. Oltman and Kenneth A. MacKichan and Glennon N. Mesnier and Frank H. Rainwater and Horace G. Thomasson},
  year = {1960},
  doi = {10.3133/70046342},
  url = {https://pubs.usgs.gov/publication/70046342},
  note = {Source identifier: 70046342}
}