@misc{indiciae48f741244a3b,
  title = {The lignite of North Dakota and its relation to irrigation},
  author = {Frank Alonzo Wilder},
  year = {1905},
  doi = {10.3133/wsp117},
  url = {https://pubs.usgs.gov/publication/wsp117},
  note = {Source identifier: wsp117}
}