@misc{indiciae1b810f64929c,
  title = {Cartographic research 1977},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1978},
  doi = {10.3133/70098418},
  url = {https://pubs.usgs.gov/publication/70098418},
  note = {Source identifier: 70098418}
}