@misc{indiciae09756036b6b2,
  title = {Think Metric},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1978},
  doi = {10.3133/70039397},
  url = {https://pubs.usgs.gov/publication/70039397},
  note = {Source identifier: 70039397}
}