@misc{indiciaeb3cb08c058c3,
  title = {Stratigraphic notes, 1989-90: Four short papers propose changes in stratigraphic nomenclature in Oregon, Vermont, Massachusetts, and southern Pakistan},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1991},
  doi = {10.3133/b1935},
  url = {https://pubs.usgs.gov/publication/b1935},
  note = {Source identifier: b1935}
}