@misc{indiciaebfb8fa5712f5,
  title = {APSRS state-base graphics},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1981},
  doi = {10.3133/70039431},
  url = {https://pubs.usgs.gov/publication/70039431},
  note = {Source identifier: 70039431}
}