@misc{indiciae1b1551dd2fd2,
  title = {Missouri: index to topographic and other map coverage},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1987},
  doi = {10.3133/1482},
  url = {https://pubs.usgs.gov/publication/1482},
  note = {Source identifier: 1482}
}