@misc{indiciae6068a96ccda2,
  title = {Bulletin of the United States Geological and Geographical Survey of the Territories: No. 6, second series},
  author = {Elliott Coues and F.B. Meek and Samuel H. Scudder and Robert Ridgway},
  year = {1876},
  doi = {10.3133/70159435},
  url = {https://pubs.usgs.gov/publication/70159435},
  note = {Source identifier: 70159435}
}