@misc{indiciaecf495e9ae034,
  title = {Contributions to the hydrology of the United States, 1927},
  author = {Nathan C. Grover},
  year = {1928},
  doi = {10.3133/wsp596},
  url = {https://pubs.usgs.gov/publication/wsp596},
  note = {Source identifier: wsp596}
}