@misc{indiciaebca5c4094b22,
  title = {Specifications for land use and land cover and associated maps},
  author = {George L. Loelkes},
  year = {1977},
  doi = {10.3133/ofr77555},
  url = {https://pubs.usgs.gov/publication/ofr77555},
  note = {Source identifier: ofr77555}
}