@misc{indiciaec549492d2b37,
  title = {Missouri River basin floods of April-May 1950 in North and South Dakota},
  author = {Roy Edwin Oltman},
  year = {1951},
  doi = {10.3133/wsp1137a},
  url = {https://pubs.usgs.gov/publication/wsp1137A},
  note = {Source identifier: wsp1137A}
}