@misc{indiciaeda335c6deece,
  title = {Geologic investigations in the American Republics 1944-1945},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1947},
  doi = {10.3133/b946},
  url = {https://pubs.usgs.gov/publication/b946},
  note = {Source identifier: b946}
}