@misc{indiciae6ce8a309ad6d,
  title = {Spirit leveling in Texas. Part 1, Western Texas, 1896-1935},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1937},
  doi = {10.3133/b883a},
  url = {https://pubs.usgs.gov/publication/b883A},
  note = {Source identifier: b883A}
}