@misc{indiciae300370abe959,
  title = {Land use and land cover and associated maps for Tucson, Ariz.},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1976},
  doi = {10.3133/ofr76122},
  url = {https://pubs.usgs.gov/publication/ofr76122},
  note = {Source identifier: ofr76122}
}