@misc{indiciae3540eeb6d1b5,
  title = {National Cartographic Information Center Newsletter No. 1},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1975},
  doi = {10.3133/70039587},
  url = {https://pubs.usgs.gov/publication/70039587},
  note = {Source identifier: 70039587}
}