@misc{indiciaebaf0a0300221,
  title = {Terrestrial Ecosystems of the Conterminous United States},
  author = {Roger G. Sayre and Patrick Comer and Jill Cress and Harumi Warner},
  year = {2010},
  doi = {10.3133/sim3106},
  url = {https://pubs.usgs.gov/publication/sim3106},
  note = {Source identifier: sim3106}
}