@misc{indiciae345f3f97ff5d,
  title = {Shorter contributions to general geology, 1930},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1931},
  doi = {10.3133/pp165},
  url = {https://pubs.usgs.gov/publication/pp165},
  note = {Source identifier: pp165}
}