@misc{indiciae147d770d1a76,
  title = {Abbreviations used in publications of the United States Geological Survey},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1953},
  doi = {10.3133/70046375},
  url = {https://pubs.usgs.gov/publication/70046375},
  note = {Source identifier: 70046375}
}