@misc{indiciaee70aa403272d,
  title = {New approaches to the geography of the United States: Introduction},
  author = {Arch C. Gerlach},
  year = {1964},
  doi = {10.1111/j.1467-8306.1964.tb00468.x},
  url = {https://pubs.usgs.gov/publication/70221129},
  note = {Source identifier: 70221129}
}