@misc{indiciae0673611e52bd,
  title = {Approximate optimum yield of the glacial outwash aquifer between Sioux Falls and Dell Rapids, South Dakota},
  author = {J.E. Powell and D. G. Jorgensen},
  year = {1970},
  doi = {10.3133/ofr71228},
  url = {https://pubs.usgs.gov/publication/ofr71228},
  note = {Source identifier: ofr71228}
}