@misc{indiciae6e687c57f248,
  title = {Large-scale mapping guidelines},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1986},
  doi = {10.3133/ofr865},
  url = {https://pubs.usgs.gov/publication/ofr865},
  note = {Source identifier: ofr865}
}