@misc{indiciae66c86a17e16e,
  title = {National Geologic Mapping Program; goals, objectives, and long-range plans},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1987},
  doi = {10.3133/cir1020},
  url = {https://pubs.usgs.gov/publication/cir1020},
  note = {Source identifier: cir1020}
}