@misc{indiciae7ce1663a9d5b,
  title = {Sonoran Basin and Range Ecoregion: Chapter 30 in Status and trends of land change in the Western United States--1973 to 2000},
  author = {James P. Calzia and Tamara S. Wilson},
  year = {2012},
  doi = {10.3133/pp1794a30},
  url = {https://pubs.usgs.gov/publication/pp1794A30},
  note = {Source identifier: pp1794A30}
}