@misc{indiciaee5d459a116ef,
  title = {Boundaries, areas, geographic centers and altitudes of the United States and the several States with a brief record of important changes in their territory},
  author = {Edward M. Douglas},
  year = {1923},
  doi = {10.3133/b689},
  url = {https://pubs.usgs.gov/publication/b689},
  note = {Source identifier: b689}
}