@misc{indiciae87c450167e23,
  title = {Land use and land cover and associated maps for El Centro, California; Arizona},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1979},
  doi = {10.3133/ofr791175},
  url = {https://pubs.usgs.gov/publication/ofr791175},
  note = {Source identifier: ofr791175}
}