@misc{indiciae8d23f9d414cc,
  title = {Shorter contributions to general geology, 1929},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1930},
  doi = {10.3133/pp158},
  url = {https://pubs.usgs.gov/publication/pp158},
  note = {Source identifier: pp158}
}