@misc{indiciae5753043d6777,
  title = {Land use map for Tucson quadrangle Arizona, and complementary tables for census tracts, drainage basins, land ownership, land use, and soils},
  author = {Robin Fegeas},
  year = {1974},
  doi = {10.3133/ofr7489},
  url = {https://pubs.usgs.gov/publication/ofr7489},
  note = {Source identifier: ofr7489}
}