@misc{indiciaed1a6391ec329,
  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 and government},
  author = {Edward M. Douglas},
  year = {1930},
  doi = {10.3133/b817},
  url = {https://pubs.usgs.gov/publication/b817},
  note = {Source identifier: b817}
}