@misc{indiciae1681c1ba460e,
  title = {EROS resources for the classroom},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {2015},
  doi = {10.3133/fs20153046},
  url = {https://pubs.usgs.gov/publication/fs20153046},
  note = {Source identifier: fs20153046}
}