@misc{indiciae69f12f501314,
  title = {U.S. Geological Survey activities, fiscal year 1981},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1982},
  doi = {10.3133/cir875},
  url = {https://pubs.usgs.gov/publication/cir875},
  note = {Source identifier: cir875}
}