@misc{indiciae2eb9713057cb,
  title = {Short papers in the geologic and hydrologic sciences, articles 293-435},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1961},
  doi = {10.3133/pp424d},
  url = {https://pubs.usgs.gov/publication/pp424D},
  note = {Source identifier: pp424D}
}